Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:
Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog
waterways, destroy wildlife habitats, and impede fanning. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants. The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused.
Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.
In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.
The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.

Which of the following is NOT given as an advantage of using biological agents over chemical herbicides?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:
Newspapers can be traced back to 16th century Venice. In 1566, handwritten news sheets - called 'avis' or ‘gazette' – filled with information on wars and politics in Europe were distributed weekly in Venice. Similar news sheets soon started to appear in other European countries. By 1615, Germany and Austria were publishing weeklies. And in 1621, the first news sheets appeared in England.
At first, these news sheets only printed news which came from outside the country in which they were printed. Discussion of local or national issues was avoided. Europe’s governments did not tolerate anything negative being said about them as it could lead to national unrest.
Such censorship slowed the development of newspapers. Nevertheless, a belief in the importance of a 'free press’ slowly began to take hold in Europe. England was among the first countries to escape government control of the press. This occurred during the reign of King Charles I in the 17th century, when, during a period of breakdown in the king's authority, people began to publish what they wanted.
Eventually, free press had the right to criticize government and voice other ideas freely. In the middle of the 18th century, Sweden became the first country to make press freedom a part of its law.
In the 19th century, the newspaper industry was transformed by the invention of the telegraph. The telegraph was a communication system that allowed messages to be sent over long distances in a matter of minutes. It wasn’t long before newspapers became society's primary means of spreading and receiving information. In 1880, the first photographs appeared in newspapers and, by the end of the century, all the basic technical tools for the modern newspaper were in place.
The story of newspapers in the 20th century was one of adaptation to changing consumer and media markets. The invention of radio, TV, and later the Internet, repeatedly drove newspapers to re-invent themselves. Also, during the 20th century, mass-market advertising increased profitability for newspapers. This attracted large, publicly-owned corporations who began buying newspapers from the descendants of company founders.
Over the years, people have periodically predicted the extinction of newspapers. In fact, every time a new media has come into being, dire predictions have been made for existing forms (e.g. television was supposed to have replaced radio, radio was supposed to have replaced newspapers). Yet history has repeatedly shown that new media do not replace existing media. Instead, what happens is that media consumption grows, which creates the necessary space for the new media to become a part of the media landscape.
According to the World Association of Newspapers (WAN), each day more than 1.5 billion people around the world read a newspaper. The WAN has also estimated the total annual worth of the global newspaper industry and put it at just under 180 billion USD. Such statistics suggest the newspaper industry is healthier than at any other time in its history. Indeed, if the industry proves itself as capable of adapting to change as it has done in the past, it is unlikely that newspapers will be disappearing from newsstands anytime soon.

The first news sheet     .

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:
Many of the most damaging and life-threating types of weather-torrential rains, severe thunderstorms, and tornadoes-begin quickly, strike suddenly, and dissipate rapidly, devastating small regions while leaving neighboring areas untouched. One such event, a tornado, struck the northeastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm. Conventional computer models of the atmosphere have limited value in predicting short-live local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to discern the subtle atmospheric changes that precede these storms. In most nations, for example, weather balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or “Nowcasts”, was not feasible. The cost of equipping and operating many thousands of conventional weather stations was prohibitively high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were insurmountable. Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications satellites can transmit data around the world cheaply and instantaneously, and modern computers can quickly compile and analyzing this large volume of weather information. Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.

Why does the author state that observations are taken “just once every twelve hours”?

As many of you have noticed, the main entrance of our building is in ---131--- condition. It is in desperate need of attention. Therefore, beginning at 6 P.M. on Friday, the main entrance ---132--- for approximately one month as it is renovated. The changes will give the entryway a more streamlined and contemporary appearance.
---133--- the main entrance is closed, employees and visitors may use the side entrances to gain access to the building. 134---.

132...................

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

   Animation traditionally is done by hand-drawing or painting successive frame of an object, each slightly different than the proceeding frame. In computer animation, although the computer may be the one to draw the different frames, in most cases the artist will draw the beginning and ending frames and the computer will produce the drawings between the first and the last drawing. This is generally referred to as computer-assisted animation, because the computer is more of a helper than an originator.

   In full computer animation, complex mathematical formulas are used to produce the final sequences of pictures. These formulas operate on extensive databases of numbers that defines the objects in the pictures as they exist in mathematical space. The database consists of endpoints, and color and intensity information. Highly trained professionals are needed to produce such effects because animation that obtains high degrees of realism involves computer techniques from three-dimensional transformation, shading, and curvatures.

   High-tech computer animation for film involves very expensive computer systems along with special color terminals or frame buffers. The frame buffer is nothing more than a giant image memory for viewing a single frame. It temporarily holds the image for display on the screen.

   A camera can be used to film directly from the computer’s display screen, but for the highest quality images possible, expensive film recorders are used. The computer computers the positions and colors for the figures in the picture, and sends this information to the recorder, which captures it on film. Sometimes, however, the images are stored on a large magnetic disk before being sent to the recorder. Once this process is completed, it is replaced for the next frame. When the entire sequence has been recorded on the film, the film must be developed before the animation can be viewed. If the entire sequence does not seem right, the motions must be corrected, recomputed, redisplayed, and rerecorded. This approach can be very expensive and time – consuming. Often, computer-animation companies first do motion tests with simple computer-generated line drawings before selling their computers to the task of calculating the high-resolution, realistic-looking images.

The word “Once” in the fourth paragraph is closest in meaning to ______.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks
Kindergarten is a fun place (1)....... young children learn. In some special kindergartens, children learn outside most of the day!
Some kindergartens are (2)................ the forest. In these "forest kindergartens," children play freely. They're outside in all kinds of weather. At forest kindergartens, children learn by climbing trees and picking fruit. They also learn about and (3)...... animals. For example, they collect chicken eggs and feed baby mice.
 Little Flower Kindergarten is in Dong Nai, Vietnam. At this school, children learn about farming. They also learn that it is important (4)......healthy food. They grow vegetables in gardens - on the roof! They eat the vegetables they grow in their lunches.
At Fuji Kindergarten in Tokyo, Japan, trees grow inside the building! The classroom windows and sliding doors (5)......... open to the outside most of the year. The roof is a big, wooden circle. Children love to play and run on it.
(5)..................................

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:
In ancient Greece, athletic festivals were very important and had strong religious associations. The Olympic athletic festival, held every four years in honour of Zeus, eventually lost its local character, became first a national event, and then, after the rules against foreign competitors had been abolished, international. No one knows exactly how far back the Olympic Games go, but some official records date from 776 B.C.
The Games took place in August on the plain by Mount Olympus. Many thousands of spectators gathered from all parts of Greece, but no married woman was admitted even as a spectator. Slaves, women and dishonoured people were not allowed to compete. Records show that the evening of the third day was devoted to sacrificial offerings to the heroes of the day, and the fourth day, that of the full moon, was set aside as a holy day. On the sixth and last day all the victors were crowned with holy garlands of wild olive from a sacred wood. So great was the honour that the winner of the foot race gave his name to the year of his victory. How their results compared with modern standards, we unfortunately had no means of telling.
After an uninterrupted history of almost 1,200 years, the Games were abolished in A. D. 394 because of their pagan origin. It was a great many years before there was another such international athletic gathering. The Greek institution was brought back into existence in 1896 and the first small meeting took place in Athens. After the 1908 London Olympics, success was re-established and nations sent their best representatives.
Today, the Games are held in different countries in turn. The host country provides vast facilities, including a stadium, swimming pools and living accommodation, but competing countries pay their own athletes' expenses. Athletic contests are still the main feature, but now many more sports are represented, women compete, the ancient pentathlon, for example, has been modified into a more comprehensive test, and the marathonraces, initiated in 1896, are now a celebrated event.
The Olympics start with the arrival in the stadium of a torch, lighted on Mount Olympus by the sun's rays. It is carried by a succession of runners to the stadium. The torch symbolizes the continuation of the ancient Greek athletic ideals, and it burns throughout the Games until the closing ceremony.

The continuity of the Olympic Games         .

Choose the correct answer  A, B, C or D to the blank space in the following passage:

"If you want to (1)…… your best in an exam, you should be relaxed and so one of the best things to do is to take regular (2)….. even if they are only for a few minutes. During revision time, you (3)….. take some time off to go for a walk or play your (4)…..  sport. It is a mistake to (5)….. up all physical activity. Exercise can (6)…. you to relax. You should (7)….  at least twenty minutes doing something different every day. Parents don’t like it when their teenage children spend (8)…..  on the phone, but, in fact, (9)…. to a friend is very good for you; parents think that children are (10)…. time and money; but research says talking to friends gives you a chance to relax, and this will make the time you spend studying more effective."

2. you should be relaxed and so one of the best things to do is to take regular (2)….. even if they are only for a few minutes.

 Choose the option  A, B, C or D that best fits the blank space in the following passage:

"At last it is here: tomorrow is the exam day. There is no more homework to do, you have done lots of (1)…..  and you have had plenty of useful practice with past papers. You have finished the (2)…. . So what should you do now? Probably the least advisable course of (3)…. would be to carry on studying late into the night, trying (4)….. to learn things you should have learned long ago and (5)…. in the morning with an awful headache.
 A far better idea is to practise, (6)….. a singer or a musician does, what you already knew. In order not to feel (7)…. the next day, go to bed early and get up at your usual (8)….. . You may be a little bit (8)….. but that is probably just a (10)…… of your determination to do will in the exam."

6. A far better idea is to practise, (6)….. a singer or a musician does, what you already knew.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:
There is a common expression in the English language referring to a blue moon. When people say that something happens “only once in a blue moon,” they mean that it happens only very rarely, once in a great while. This expression has been around for at least a century and a half; there are references to this expression that date from the second half of the nineteenth century. (5) The expression “a blue moon” has come to refer to the second full moon occurring in any given calendar month. A second full moon is not called a blue moon because it is particularly blue or is any different in hue from the first full moon of the month. Instead, it is called a blue moon because it is so rare. The moon needs a little more than 29 days to complete the cycle from full moon to full moon. Because every month except February has more than 29 days, every month will have at least one full moon (except February, which will have a full moon unless there is a full moon at the very end of January and another full moon at the very beginning of March). It is on the occasion when a given calendar month has a second full moon that a blue moon occurs. This does not happen very often, only three or four times in a decade. The blue moons of today are called blue moons because of their rarity and not because of their color; however, the expression “blue moon” may have come into existence in reference to unusual circumstances in which the moon actually appeared blue. Certain natural phenomena of gigantic proportions can actually change the appearance of the moon from Earth. The eruption of the Krakatao volcano in 1883 left dust particles in the atmosphere, which clouded the sun and gave the moon a bluish tint. This particular occurrence of the blue moon may have given rise to the expression that we use today. Another example occurred more than a century later. When Mount Pinatubo erupted in the Philippines in 1991, the moon again took on a blue tint.

Which of the following might be the date of a “blue moon”?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:
After twenty years of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollment in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.
There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street, or in other financial districts of major American cities. Many of the entry- level management jobs are going to students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.

What is the main focus of this passage?

Read the passage carefully and choose the correct answer.

The American education system requires that students complete 12 years of  primary and secondary education prior to attending university or college. This may be accomplished either at public or government-operated schools, or at private schools. These 12 years of schooling or their equivalent may also be completed outside the USA, thus giving foreign students the opportunity to pursue the benefits of the American education system and obtain a quality American education. Perhaps one of the most impressive facts is that a large number of presidents, prime ministers and leaders from other countries have experienced the American education system and graduated from a university or school in the USA. In many fields and industries, the American education system offers the most cutting-edge, sought-after programs at the world's best schools. That is why graduating from an accredited American school and being exposed to the rigors of the American education system is an investment in your future. Whether you want to study at a top USA university, a top USA college, a vocational or high school, a thorough understanding of how the American education system works is essential. Without a clear grasp of the American education system, an international student will find it difficult to make the right academic choices. It is no surprise that the American education system and the American school system host more international students than any other country in the world!

The expression government-operated could best be replaced by _____.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.
For hundreds of years, giving flowers have been a social means of communication. In the United States, flowers are often given during rites of passage, for commemorating special occasions or as a heartfelt gift between loved ones and friends. Flower gifting also occurs in most countries around the world. However, the meanings and traditions often vary.
While students traditionally gave their favorite teacher an apple in past years, in China, teachers are given flowers. Peonies are by far the  flower most often  given  in  China. They are also quite popularly used for weddings. Strangely, potted plants are not considered a pleasant gift among Asian cultures. The people believe that like a plant confined by a pot, the gift  symbolizes a binding or restriction.
In Russia, in lieu of giving birthday presents, the guest of honor receives a single flower or an unwrapped bouquet. Floral arrangements or baskets are not given. Russians celebrate a holiday known as Woman's Day. Traditional gifts include red roses, hyacinths or tulips. When   there is a funeral or other occasion where someone wishes to express sympathy, carnations, lilies or roses are given in circular configurations, which signify the transition of birth, life and death to   rebirth. In this instance, the color of choice is commonly yellow. For joyous occasions, arrangements and bouquets generally contain an odd number of flowers.
In the times of ancient Rome, brides carried flowers to scare away evil spirits and encourage fertility. The Dutch believed that flowers were food for the soul. When invited to someone's home in Great Britain, it is tradition to bring a gift of flowers. All types are acceptable except white lilies, which are usually seen at funerals. Unlike the United States, red roses are a symbol of love.
Flowers are generally gifted in odd numbered increments regardless of the occasion. However, the Brits also have superstitions regarding the number 13, so the number is avoided.
In the southern region of the continent, flowers are traditionally given during Christmas. Egyptians are much more conservative and restrict flower gifting to funerals and weddings. While certain flowers may have significant meanings for some, flowers in Las Vegas and across the United States flowers are an accepted gift for any reason desired.

What does the word "They" in paragraph 2 refer to?

Read the passage and choose the best option A, B, C, D to complete it.

Full Moon festival, also known as Mid-Autumn Festival or ‘Tet Trung Thu’ in Vietnamese is held (1) _________ the 14th and 15th of the August lunar month. This is an (2) _________ harvest festival celebrated not only in Vietnam (3) ________ in other wet rice countries in Asia such as China, Taiwan, Hongkong, Japan, and Korea. The Full Moon festival offers leisure time for family members to come back home, organize and participate in a wide range of activities including children carrying paper lanterns, lion dances, ….

In fact, there aren’t (4) _______ important customs you must follow but it is good to find wonderful places to visit during this period. Mid-Autumn festival is best enjoyed in Hoi An by strolling down and admiring (5) ______ paper lanterns floating the Thu Bong Riverside. If you base in Hanoi, it is (6) _______ recommended to go to Thang Long Royal Citadel, My Dinh National Stadium, and Hoan Kiem Lake to enjoy a festive atmosphere of fun, safety, and peace.
5. Mid-Autumn festival is best enjoyed in Hoi An by strolling down and admiring (5) ______ paper lanterns floating the Thu Bong Riverside.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrases that best fits each of the numbered blanks.
HOW TO AVOID MISCOMMUNICATION IN THE WORKPLACE
As a small-business owner, you can avoid many problems simply by improving communication in your office. By clarifying everyone's expectations and roles, you'll help to (46)............ greater trust and increase productivity among employees. Here are a few tips for doing so.
Practice active listening. The art of active listening includes (47)........ close attention to what another person is saying, then paraphrasing what you've heard and repeating it back. Concentrate (48)............ the conversation at hand and avoid unwanted interruptions (cell phone calls, others walking into your office, etc.). Take note of how your own experience and values may color your perception.
Pay attention to non-verbal cues. We don't communicate with words alone. Every conversation comes with a host of non-verbal cues -  facial  expressions,  body language,  etc.  -  that  may (49)......... contradict  what  we're saying.  Before addressing a staff member or (50).............. a project conference, think carefully about your tone of voice, how you make eye contact, and what your body is "saying." Be consistent throughout. Be clear and to the point. Don't cloud instructions or requests with irrelevant details, such as problems with past projects or issues with long-departed personnel. State what you need and what you expect. Ask, "Does anyone have any questions?" Demonstrate that you prefer questions up-front as opposed to misinterpretation later on.

(46).....................

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.
For hundreds of years, giving flowers have been a social means of communication. In the United States, flowers are often given during rites of passage, for commemorating special occasions or as a heartfelt gift between loved ones and friends. Flower gifting also occurs in most countries around the world. However, the meanings and traditions often vary.
While students traditionally gave their favorite teacher an apple in past years, in China, teachers are given flowers. Peonies are by far the  flower most often  given  in  China. They are also quite popularly used for weddings. Strangely, potted plants are not considered a pleasant gift among Asian cultures. The people believe that like a plant confined by a pot, the gift  symbolizes a binding or restriction.
In Russia, in lieu of giving birthday presents, the guest of honor receives a single flower or an unwrapped bouquet. Floral arrangements or baskets are not given. Russians celebrate a holiday known as Woman's Day. Traditional gifts include red roses, hyacinths or tulips. When   there is a funeral or other occasion where someone wishes to express sympathy, carnations, lilies or roses are given in circular configurations, which signify the transition of birth, life and death to   rebirth. In this instance, the color of choice is commonly yellow. For joyous occasions, arrangements and bouquets generally contain an odd number of flowers.
In the times of ancient Rome, brides carried flowers to scare away evil spirits and encourage fertility. The Dutch believed that flowers were food for the soul. When invited to someone's home in Great Britain, it is tradition to bring a gift of flowers. All types are acceptable except white lilies, which are usually seen at funerals. Unlike the United States, red roses are a symbol of love.
Flowers are generally gifted in odd numbered increments regardless of the occasion. However, the Brits also have superstitions regarding the number 13, so the number is avoided.
In the southern region of the continent, flowers are traditionally given during Christmas. Egyptians are much more conservative and restrict flower gifting to funerals and weddings. While certain flowers may have significant meanings for some, flowers in Las Vegas and across the United States flowers are an accepted gift for any reason desired.

It can be inferred from the passage that _________

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:
Newspapers can be traced back to 16th century Venice. In 1566, handwritten news sheets - called 'avis' or ‘gazette' – filled with information on wars and politics in Europe were distributed weekly in Venice. Similar news sheets soon started to appear in other European countries. By 1615, Germany and Austria were publishing weeklies. And in 1621, the first news sheets appeared in England.
At first, these news sheets only printed news which came from outside the country in which they were printed. Discussion of local or national issues was avoided. Europe’s governments did not tolerate anything negative being said about them as it could lead to national unrest.
Such censorship slowed the development of newspapers. Nevertheless, a belief in the importance of a 'free press’ slowly began to take hold in Europe. England was among the first countries to escape government control of the press. This occurred during the reign of King Charles I in the 17th century, when, during a period of breakdown in the king's authority, people began to publish what they wanted.
Eventually, free press had the right to criticize government and voice other ideas freely. In the middle of the 18th century, Sweden became the first country to make press freedom a part of its law.
In the 19th century, the newspaper industry was transformed by the invention of the telegraph. The telegraph was a communication system that allowed messages to be sent over long distances in a matter of minutes. It wasn’t long before newspapers became society's primary means of spreading and receiving information. In 1880, the first photographs appeared in newspapers and, by the end of the century, all the basic technical tools for the modern newspaper were in place.
The story of newspapers in the 20th century was one of adaptation to changing consumer and media markets. The invention of radio, TV, and later the Internet, repeatedly drove newspapers to re-invent themselves. Also, during the 20th century, mass-market advertising increased profitability for newspapers. This attracted large, publicly-owned corporations who began buying newspapers from the descendants of company founders.
Over the years, people have periodically predicted the extinction of newspapers. In fact, every time a new media has come into being, dire predictions have been made for existing forms (e.g. television was supposed to have replaced radio, radio was supposed to have replaced newspapers). Yet history has repeatedly shown that new media do not replace existing media. Instead, what happens is that media consumption grows, which creates the necessary space for the new media to become a part of the media landscape.
According to the World Association of Newspapers (WAN), each day more than 1.5 billion people around the world read a newspaper. The WAN has also estimated the total annual worth of the global newspaper industry and put it at just under 180 billion USD. Such statistics suggest the newspaper industry is healthier than at any other time in its history. Indeed, if the industry proves itself as capable of adapting to change as it has done in the past, it is unlikely that newspapers will be disappearing from newsstands anytime soon.

The pronoun “it” in the last paragraph refers to     .

Choose the best answer:
The flight to Hanoi __________ at 2 o’clock tomorrow afternoon.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:
U.N. diplomats abandoned efforts to draft a treaty that would outlaw human cloning. They will likely settle for a weaker statement, and won’t seek a widespread ban, officials said. The debate began when Italy introduced a document into the UN. to stop any attempt at cloning human life. The Belgians objected to the use of the term “human life” in the document, because they feared it would put a stop to all forms of human cloning.
[1] There is near universal support among the United Nations’ 191 members for a ban on reproductive cloning-creating cloned babies. [2] Many countries have wrestled over whether to allow cloning for stem cell and other types of research. [3] Indeed, many researchers believe that stem cells could be used to repair nerve tissue or cure diseases, including Alzheimer’s. [4] Stem cells are taken from embryos and cloned, but extracting these cells kills the embryo. Opponents say that this is equal to murder.

The word “it” in-the text refers to     .

Read the passage and choose the best answer.

Instagram was founded by Kevin Systrom and Mike Krieger in October 2010. Systrom and Krieger initially wanted to create an application for mobile photography called Burbn, but upon developing their idea further, they found that it was too similar to the existing search-result app called Foursquare. They tweaked their original idea until they came up with a photo-sharing app. The name “Instagram” is a combination of “instant camera” and “telegram.”

From the outset, Instagram proved extremely popular. Only two months after its launch, it achieved a million users and reached ten million users in its first year. The simple idea of sharing photos in a social media setting appealed to a wide variety of phone users. As time went on, Systrom and Krieger began making a series of technology-related improvements to the app —making it compatible with Android and Windows phones, for example - as well as improving the user experience. In January 2011, it added hashtags, offering users the ability to find posts and people related to common interests. As Instagram grew into one of the most popular apps in the world, tech titans took notice. In 2012, Facebook purchased Instagram for one billion dollars.

In November 2012, Instagram launched web versions of user profiles, giving desktop users the ability to access Instagram profiles. However, the website profile launch retained limited functionality and lacked a search bar; the feature was redesigned in 2015. Instagram also began allowing the upload of non-square photos to the app in August 2015, a notable shift from the look and feel of the app since its inception. Rather than cropping down larger photos to a neat square, users could upload any photo of any dimension to share with friends and followers.

In March 2016, Instagram changed the nature of its news feed, the place where users scroll through newly-posted photos from those they follow, from chronological to algorithmic. “Algorithmic” means that Instagram uses computer algorithms and artificial intelligence to make “decisions” on what its data predicts you’ll like best. While this decision was met with backlash at first, it was made in order to prevent users from missing important posts from friends and family that might have gone unnoticed with a standard chronological timeline approach. Later in 2016, the app underwent major aesthetic changes; the app itself revamped to a black-and-white theme, while the app icon changed to a whimsical rainbow-colored design.

Today, Instagram boasts 800 million users. Every day, 55 million photos are uploaded and 1.2 billion likes are recorded.

In the last paragraph, why is “decisions” in quotation marks?

The Irwin Neighbourhood Association is proud to ---143--- a summer event called Park Fest, to be held at Fern Park on 10 January, from 1 P.M. to 8 P.M. Park Fest will feature numerous family-friendly activities and a delicious picnic dinner to be served at 6 P.M. A per person fee of ten dollars will be collected.  The proceeds will---144--- go towards a park enhancement project. The plan is to hire a contractor to landscape the park grounds, while a smaller portion will be spent on an advertising campaign. This event---145--- to be great fun.---146---.

143..................