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:
It can be shown in facts and figures that cycling is the cheapest, most convenient, and most environmentally desirable term of transport in towns, but such cold calculations do not mean much on a frosty winter morning. The real appeal of cycling is that it is so enjoyable. It has none of the difficulties and tensions of other ways of traveling so you are more cheerful after a ride, even though the rush hour.
The first thing a non-cyclist says to you is: "But isn't it terribly dangerous?" It would be foolish to deny the danger of sharing the road with motor vehicles and it must be admitted that there are an alarming number of accidents involving cyclists. However, although police records indicate that the car driver is often to blame, the answer lies with the cyclist. It is possible to ride in such a way as to reduce risks to a minimum.
If you decide to join the thousands in Britain who are now returning to cycling as a cheap, satisfying form of transport your first problem will be trying to decide what bike to buy. Here are three simple rules for buying a bike:
Always buy the best you can afford. Of course there has to be a meeting point between what you would really like and economic reality, but aim as high as you can and you will get the benefit not only when you ride but also if you want to sell. Well-made bikes keep the value very well. And don't forget to include in your calculations the fact that you'll begin saving money on fares and petrol the minute you leave the shop.
Get the best frame, the main structure of the bicycle, for your money as you can. Cheap brakes, wheels or gears can easily be replaced by more expensive ones, but the frame sets the    upper limit on any transformation. You should allow for the possibility our cycling ambitions will grow with practice. When you begin, the four miles to work may the most you ever dream of, but after a few months a Sunday ride into the country begins to look more and more desirable. The best thing is to buy a bike just a little bit better than you think you'll need, and then grow into it. Otherwise, try to get a model that can be improved.
The fit is vital. Handlebars and seat height can be adjusted but you must get the right sized frame. On the whole it is best to get the largest size you can manage. Frame sizes are measured in inches and the usual adult range is from 21 inches to 25 inches, though extreme sizes outside those measurements can be found. Some people say if you take four inches off from your inside leg measurement you will end up with the right size of bike. The basic principle though is that you should be able to stand with legs either side of the crossbar (the bar that goes from the handlebars to the seat) with both feet comfortably flat on the ground.

As regards road safety, the author thinks that     .

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 writer _______ the US education.

Read the passage and decide which answer A, B, C, or D best fits each space. 

The Lost Shoe

Once a poor farmer had a daughter named Little Pea. After his wife died, the farmer married again. His new wife had a daughter, Stout Nut. (1) ________, the new wife was very cruel to Little Pea. Little Pea had to do chores all day. This made Little Pea’s father very upset. He soon died (2) ______ a broken heart.

Summer came and went. In the fall, the village held its harvest festival. That year, everyone was (3) ________ as the prince wanted to choose his wife from the village. Stout Nut’s mother made new clothes for her, but poor Little Pea had none. (4) ___________, before the festival started, a fairy appeared and (5) ________ changed Little Pea’s rags into beautiful clothes.

As Little Pea ran to the festival, she dropped one of her shoes and lost it. When the prince found the shoe, he decided to marry the girl who owned it. Of course, the shoe fitted Little Pea. and the prince immediately fell in love with her.

3.That year, everyone was (3) ________ as the prince wanted to choose his wife from the village. 

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:
When living and working in another country, there are numerous things to consider apart from the more obvious ones of climate, language, religion, currency, etc. Some important considerations are less obvious. For example, do you have a pet or do you enjoy a hobby such as horse riding? Your animal or hobby may be perceived in a completely different light in another culture so it’s important to consider the significance given to specific animals in different parts of the world and general perceptions towards them.
One example which is often mentioned in popular press is the case of dogs. In some cultures, like the US or UK, dogs are loved and considered a great pet to have at home and with the family. In other cultures, such as those where Islam is the majority religion, dogs may be perceived as dirty or dangerous. Muslims treatment of dogs is still a matter of debate amongst Islamic scholars. While these animals are widely considered by many Western cultures to be „man’s best friend’, the Koran describes them as “unhygienic”. Muslims will therefore avoid touching a dog unless he can wash his hands immediately afterwards, and they will almost never keep a dog in their home.
In Iran, for instance, a cleric once denounced „the moral depravity’ of dog owners and even demanded their arrest. If you are an international assignee living and working in Saudi Arabia or another Arabic country, you should remember this when inviting Arab counterparts to your house in case you have a dog as a pet. This is just one example of how Islam and other cultural beliefs can impact on  aspects of everyday life that someone else may not even question. A Middle Eastern man might be very surprised when going to Japan, for instance, and seeing dogs being dressed and pampered like humans and carried around in baby prams!
Dogs are not the only animals which are perceived quite differently from one culture to another. In India, for example, cows are sacred and are treated with the utmost respect. Conversely in Argentina, beef is a symbol of national pride because of its tradition and the high quality of its cuts. An Indian working in Argentina who has not done his research or participated in a cross cultural training programme such as Doing Business in Argentina may be surprised at his first welcome dinner with his Argentinean counterparts where a main dish of beef would be served.
It is therefore crucial to be aware of the specific values assigned to objects or animals in different cultures to avoid faux–pas or cultural misunderstandings, particularly when living and working in another culture. Learning how people value animals and other symbols around the world is one of the numerous cultural examples discussed in Communicaid’s intercultural training courses. Understanding how your international colleagues may perceive certain animals can help you ensure you aren’t insensitive and it may even provide you with a good topic for conversation.

The author mentioned cows in paragraph 4 as an example of     .

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.
The (1)........... of the earth is caused by exhaust gas from automobile engines, factories and power  stations. Carbon dioxide goes up into the atmosphere, and it forms a kind of factories that keeps or rather allows the sunshine in but stop the earth’s heart (2).........  getting out. It works like a greenhouse, that’s why we call it the Greenhouse Effect.
Because of this effect, the earth is getting warmer all the time. This (3).........    in temperature will  cause big changes to the world's climate. The sea level will rise, the ice covering the poles will melt and cause the sea level to rise.
The second problem is the (4)......... of the ozone layer. Certain chemicals float up to the sky and react with the ozone layer, and they make holes in it. Because of these holes the ultraviolet rays can shine directly to the earth. Many people are now starting to suffer from skin cancer.
The sulfurous smoke from factories and power stations mixes with rain clouds and gets blown by the wind and then falls as acid rain (5)......... destroys lakes and forests.
These three problems threaten our environment at the end of the twentieth century. Unless we do something about them quickly, we, human race, may disappear from the face of the earth.
(5)...........................

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.
                     ALFRED NOBEL
Alfred Nobel was born on October 21, 1833 in Sweden. His important invention was dynamite - a powerful (1)........ _. This dynamite business made him a very rich man.
One day, Alfred Nobel read about his death in a newspaper. In fact, it was his brother's death. The mass media (2).........him a saleman of death, "The dynamite king". Nobel was very upset. He had invented dynamite to save lives - lives ( 3 )............ _ were lost because other explosives were dangerous to use. He hated violence and war. And he did not like the world to    think of him as a man of war.
He thought (4)..........the  best way for people to  use  his fortune for  years. (5)................... _  he knew  what to do with his fortune. Alfred Nobel established the Nobel Prize, an annual award to honour leaders of science, literature, and world peace. Alfred Nobel died on December 10, 1896. He was unmarried and had no children. His important decision changed the way the  world thought of him. He was remembered the way he wanted: Alfred Nobel, man of peace.

(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:
It can be shown in facts and figures that cycling is the cheapest, most convenient, and most environmentally desirable term of transport in towns, but such cold calculations do not mean much on a frosty winter morning. The real appeal of cycling is that it is so enjoyable. It has none of the difficulties and tensions of other ways of traveling so you are more cheerful after a ride, even though the rush hour.
The first thing a non-cyclist says to you is: "But isn't it terribly dangerous?" It would be foolish to deny the danger of sharing the road with motor vehicles and it must be admitted that there are an alarming number of accidents involving cyclists. However, although police records indicate that the car driver is often to blame, the answer lies with the cyclist. It is possible to ride in such a way as to reduce risks to a minimum.
If you decide to join the thousands in Britain who are now returning to cycling as a cheap, satisfying form of transport your first problem will be trying to decide what bike to buy. Here are three simple rules for buying a bike:
Always buy the best you can afford. Of course there has to be a meeting point between what you would really like and economic reality, but aim as high as you can and you will get the benefit not only when you ride but also if you want to sell. Well-made bikes keep the value very well. And don't forget to include in your calculations the fact that you'll begin saving money on fares and petrol the minute you leave the shop.
Get the best frame, the main structure of the bicycle, for your money as you can. Cheap brakes, wheels or gears can easily be replaced by more expensive ones, but the frame sets the    upper limit on any transformation. You should allow for the possibility our cycling ambitions will grow with practice. When you begin, the four miles to work may the most you ever dream of, but after a few months a Sunday ride into the country begins to look more and more desirable. The best thing is to buy a bike just a little bit better than you think you'll need, and then grow into it. Otherwise, try to get a model that can be improved.
The fit is vital. Handlebars and seat height can be adjusted but you must get the right sized frame. On the whole it is best to get the largest size you can manage. Frame sizes are measured in inches and the usual adult range is from 21 inches to 25 inches, though extreme sizes outside those measurements can be found. Some people say if you take four inches off from your inside leg measurement you will end up with the right size of bike. The basic principle though is that you should be able to stand with legs either side of the crossbar (the bar that goes from the handlebars to the seat) with both feet comfortably flat on the ground.

The word "transformation" in paragraph 5 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 for each of the blanks.
These days, most people in Britain and the US do not (1)........ very formal clothes. But sometimes it is important to wear the right thing.
Many British people don't think (2)........... clothes very much. They just like to be comfortable. When they go out to enjoy themselves, they can wear almost anything. At theatres, cinemas and concerts you can put on (3).............. you like from elegant suits and dresses to jeans and sweaters. Anything goes, as long as you (4)......... clean and tidy.
But in Britain, as well as in the US, men in offices usually wear suits and ties, and women wear dresses or skirts (not trousers). Doctors, lawyers and business people wear quite formal clothes. And in (5)............hotels and restaurants men have to wear ties and women wear smart dresses.
(5)...........................................

I am delighted to inform you that Voyacon has been selected as one of this year’s Code Touch Magazine’s Top 25 Emerging Technology Firms. We will be ---139--- your company in our September issue. This is considered a great honor by our readers, as our list includes only ---140--- that advance the industry in significant ways.

As Voyacon’s founder, could you e-mail us a digital photograph of yourself to use in the article?---141---. We could need to receive it ---142--- August 5. Otherwise, we will use a public-domain photo. Thanks for your help, and congratulations.

139....................

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 the North American colonies, red ware, a simple pottery fired at low temperatures, and stone ware, a strong, impervious grey pottery fired at high temperatures, were produced from two different native clays. These kinds of pottery were produced to supplement imported European pottery. When the American Revolution (1775-1783) interrupted the flow of the superior European ware, there was incentive for American potters to replace the imports with comparable domestic goods. Stoneware, which had been simple utilitarian kitchenware, grew increasingly ornate throughout the nineteenth century, and in addition to the earlier scratched and drawn designs, threedimensional molded relief decoration became popular. Representational motifs largely replaced the earlier abstract decorations. Birds and flowers were particularly evident, but other subjects---lions, flags, and clipper ships---are found. Some figurines, mainly of dogs and lions, were made in this medium. Sometimes a name, usually that of the potter, was die-stamped onto a piece.
As more and more large kilns were built to create the high-fired stoneware, experiments revealed that the same clay used to produce low-fired red ware could produce a stronger, paler pottery if fired at a hotter temperature. The result was yellow ware, used largely for serviceable items; but a further development was Rockingham ware---one of the most important American ceramics of the nineteenth century. (The name of the ware was probably derived from its resemblance to English brown-glazed earthenware made in South Yorkshire.) It was created by adding a brown glaze to the fired clay, usually giving the finished product a mottled appearance. Various methods of spattering or sponging the glaze onto the ware account for the extremely wide variations in color and add to the interest of collecting Rockingham. An advanced form of Rockingham was flint enamel, created by dusting metallic powders onto the Rockingham glaze to produce brilliant varicolored streaks.
Articles for nearly every household activity and ornament could be bought in Rockingham ware: dishes and bowls, of course; also bedpans, foot warmers, cuspidors, lamp bases, doorknobs, molds, picture frames, even curtain tiebacks. All these items are highly collectible today and are eagerly sought. A few Rockingham specialties command particular affection among collectors and correspondingly high prices.

The word “It” in paragraph 2 refers 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
Most Americans eat three  meals (10)...... the day: breakfast, lunch, and dinner. Breakfast begins between 7:00 and 8:00am, lunch between 11:00 am and noon, and dinner between 6:00 and 8:00 pm. On Sundays  "brunch" is  a (11) ..................of breakfast and lunch, typically beginning at 11:00 am. Students often enjoy a "study break" or evening snack around 10:00 or 11:00 pm. Breakfast and lunch tend to be light meals, with only one course. Dinner is the main meal.
For breakfast Americans will eat cereal with milk which are often mixed (12)......... in a bowl, a glass of orange juice, and toasted bread or muffin with jam, butter, or margarine. Another common breakfast meal is scrambled eggs or an omelet with potatoes and breakfast meat (bacon or sausage). People who are on a diet eat just a cup of yogurt. Lunch and dinner are more (13)............ . When eating at a formal dinner, you may be overwhelmed by the number of utensils. How do you (14)..........the difference between a salad fork, a butter fork, and a dessert fork? Most Americans do not know the answer. But knowing which fork or spoon to use first is simple: use the outermost utensils first and the utensils closest to the plate last.

(11)..............................

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:
As the twentieth century began, the importance of formal education in the United States increased. The frontier had mostly disappeared and by 1910 most Americans lived in towns and cities. Industrialization and the bureaucratization of economic life combined with a new emphasis upon credentials and expertise to make schooling increasingly important for economic and social mobility. Increasingly, too, schools were viewed as the most important means of integrating immigrants into American society.
The arrival of a great wave of southern and eastern European immigrants at the turn of the century coincided with and contributed to an enormous expansion of formal schooling. By 1920 schooling to age fourteen or beyond was compulsory in most states, and the school year was greatly lengthened. Kindergartens, vacation schools, extracurricular activities, and vocational education and counseling extended the influence of public schools over the lives of students, many of whom in the larger industrial cities were the children of immigrants. Classes for adult immigrants were sponsored by public schools, corporations, unions, churches, settlement houses, and other agencies.
Reformers early in the twentieth century suggested that education programs should suit the needs of specific populations. Immigrant women were once such population. Schools tried to educate young women so they could occupy productive places in the urban industrial economy, and one place many educators considered appropriate for women was the home.
Although looking after the house and family was familiar to immigrant women, American education gave homemaking a new definition. In preindustrial economies, homemaking had meant the production as well as the consumption of goods, and it commonly included income-producing activities both inside and outside the home, in the highly industrialized early-twentieth-century United States, however, overproduction rather than scarcity was becoming a problem. Thus, the ideal American homemaker was viewed as a consumer rather than a producer. Schools trained women to be consumer homemakers cooking, shopping, decorating, and caring for children "efficiently" in their own homes, or if economic necessity demanded, as employees in the homes of others. Subsequent reforms have made these notions seem quite out-of-date.

The phrase "coincided with" in paragraph 2 is closest in meaning to .

Read the passage and answer the questions 

Lunar New Year, or Tet, is considered the (1) ______ festival and holiday in Vietnam. All schools, companies, and factories are temporarily closed. It is the occasion for family (2) __________ when people return to their families. To prepare for this particular day, most Vietnamese people prepare by cleaning and (3) _____________ their houses as well as cooking delicious foods. There are a lot of special Vietnamese customs during this time that you could learn. For example, the (4) ________ of the first person visiting the house on the new year, wishing greetings of New Year, ancestral worship, and giving lucky money to elderly people and children. During Tet, Vietnamese people will visit their relatives, and go to pagodas and temples (5) ___________ for a better upcoming year.

4.For example, the (4) ________ of the first person visiting the house on the new year, wishing greetings of New Year, ancestral worship, and giving lucky money to elderly people and children. 

Thanks for a great year! In case you haven't heard, Henwith Home Supply will be ---135--- our second store this spring. This additional retail site will be located in the shopping centre at the corner of Aberton Parkway and Sutton Avenue in Derbyshire.

We will be accepting applications for cashiers and sales position
---136--- 1 April. The personnel director will review applicants' qualifications from 2 April to 6 April, and ---137--- is scheduled to begin one week later.---138---.

136.................

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions.
                      My first home
When my parents married, they rented a small house and they didn’t have a lot of money for furniture. The kitchen had a sink for washing up and a cooker, but that was all. They (6)............. a old table and a chair from the market. They borrowed a sofa (7)....... _was also old but they covered it with modern materials so it was bright and cheerful.
Outside, there was a small garden behind the house, but in front of it there was only the road. (8).........., the road wasn’t busy, so I could cross it to reach the park on the opposite side. We   lived there (9)..........I was ten and we were very happy. We had to move house because it was too small when my twin sisters were born. We all (10).......... sad when we left.

(8)..........................

Garden Shade creates tree landscapes and hedges to suit every garden, no matter the size. Our designs have ---131--- small urban gardens as well as large-scale projects commissioned by architects and property developers. ---132---. However, no single nursery can offer trees of all species and sizes. That is why Garden Shade has developed close relationships with many specialist growers
---133--- to provide us with the trees we need. Such resources give us the variety necessary to complete any ---134---. In other words, whatever your landscape design dream, we can make it happen.

134.................

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.
          NEIGHBOURS INFLUENCE BUYING DECISIONS
However objective we believe ourselves to be, most of us do not judge a product solely on its merits, considering quality, value and style before making a decision. (6)........., we are easily influenced by the people around us.
There is nothing wrong with this. It is probably a smarter way to make decisions than (7)........on only our own opinions. But it does make life hard for companies. They have long understood that groups of friends and relatives tend to buy the same products, but understanding the reasons has been tricky. It is because they are so similar with (8)....... to how much money they make and what television ads they watch that they independently arrive at the same decision? Or do they copy one another, perhaps (9)............ envy or perhaps because they have shared information about the products?
Research in Finland recently found overwhelming evidence that neighbours have a big influence on buying decisions. When one of a person’s ten nearest neighbours bought a car, the chances (10)......... that person would buy a car of the same brand during the next week and a half rose by 86 per cent. The researchers argued that it was not just a matter of envy. Used cars seemed to attract neighbours even more than new cars. This suggested that people were not trying to keep up with their neighbours, they were keen to learn from them. Since used cars are less reliable, a recommendation of one can strongly influence a buying decision.
(6)..............................

Choose the item (A, B, C or D) that best completes each of the following sentences. 
In 1988, for the first time in British history, a National Curriculum was introduced. The National Curriculum tells pupils which subjects they have to study, what they must learn and when they have to take assessment tests. [assessment: đánh giá] 
Between the ages of 14 and 16, pupils study for their GCSE (General Certificate of Secondary Education) exams. Pupils must take English Language, Maths and Science for GCSE, as well as a half GCSE in a foreign language and Technology. addition, they must also be taught Physical Education, Religious Education and Sex Education, although they do not take exams in these subjects. 
At the age of 16, pupils can leave school. If pupils stay on, they usually take A (Advanced) levels, AS (Advanced Supplementary) level or GNVQs (Greater National Vocational Qualifications). It is quite common to combine, for example, two A levels with one AS level, or one A level with one GNVQ. 
Pupils taking A levels study traditional subjects, such as French, Physics or History. To go to university, pupils usually need two or three A levels. 
AS levels are the same standard as A levels, but only half of the content: AS level German. Pupils take the A-level German language exam, but do not take the A-level German Literature exam. 
GNVQs are vocational qualifications. Pupils usually take on GNVQ in subjects such as Business, Leisure and Tourism, Manufacturing, and Art and Design. One GVNQ (at advanced level) is equal to two A levels.

Which of the following subjects do British students NOT take exams in? 

Read the passage and mark A, B, C, or D to indicate the correct answer to each of the blanks. 
In European and North American cultures, body language behaviors can be divided into 2 groups: open or closed and forward or backward.
Open/closed postures are the easiest to (21).............. . People are open to messages when they show open hands, face you fully, and have both feet on the ground. This indicates that they are (22)............... to listen to what  you are saying, even if they are disagreeing with you. When people are closed to messages, they have their arms folded or their legs crossed, and they may turn their bodies away. This body language usually means that people are rejecting your message.
Forward or backward behavior reveals an active or a passive (23)...... to what is being said. If people lean forward with their bodies toward you, they are actively engaged in your message. They may be accepting or rejecting it, but their minds are on (24).................you are saying. On the other hand, if people lean back in their chairs or look away from you, or perform activities such as drawing or cleaning their eyeglasses, you know that they are either passively taking in your message or that they are ignoring it. In (25).............case, they are not very much engaged in the conversation.

(21)..........................

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:
A team of Russian scientists has challenged the theory that the woolly mammoths became extinct 10,000 years ago at the end of the Ice Age. The scientists have reported that the beasts may have survived until 2000 B.C. on an island off the coast of Siberia, where researchers uncovered 29 fossilized woolly mammoth teeth ranging in age from 4,000 to 7,000 years. The question to be asked now is, how did these prehistoric pachyderms survive in their island environment? One possibility is that they adapted to their confined surroundings by decreasing their bulk. This theory is based on their smaller tooth size, which  has led scientists to believe that they were only 6 feet tall at the shoulder compared with 10 feet of their full-sized counterpart. But would this be enough to enable them to survive thousands of years beyond that of other mammoths? Researchers are still working to uncover the reasons for this isolated group's belated disappearance.

The author uses the word "counterpart" in line 7 to refer to

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 mention the tornado in Edmonton, Canada?