Probability of extinction depends _____ both the population size and fine details of the population demography.

(356)______

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Charlie said, "You can come and stay with me if you are ever in London".

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Ocean Currents and the Turning of the Tide
If you take a seat at the beach and look out across the water, you’ll soon notice that oceans have a rhythm of their own. Throughout the course of the day, sea levels will rise and fall, and water will flow through routes and end up in different places. But how does it all work? One force at play is tides, which are the alternating water levels of the ocean. There are two major gravitational forces which cause tides: the sun and the moon. The moon’s force has a tugging effect on oceans which causes them to bulge outwards on opposite sides of the planet. Solar tides operate according to the same principles. However, they are only about 50 percent as strong due to the distance between the sun and the earth. As tides rise and fall, they create tidal currents. The strongest tidal currents occur at the height of both high and low tides. Unlike other currents, they do not flow in a continuous stream. Far from shore, tidal currents don’t have much of an effect. Yet when they pass through narrow area, like harbours and bays, tidal currents can displace plants, animals, and sediment. Although they may certainly shake things up, not all of the damage is negative. Tidal currents can spread fish eggs across long distances to assist fertilization, in addition to transporting key nutrients. Another category of currents is ocean currents. These currents occur near the top of the water, and are mainly powered by the wind. One example of these is coastal currents, which are those beachgoers encounter when going for a swim. One of the strongest and most well-known currents is the Gulf Stream, which brings warm water from the Gulf of Mexico all the way to Western Europe. Meanwhile, Deep Ocean currents are a powerful force in the depths of oceans. The strongest of these has been nicknamed the global conveyor belt, and it moves much slower than surface currents. Although we can’t see it in operation, it’s about 16 times as powerful as all the earth’s rivers put together. As the global conveyor belt pushes water around the planet, it carries nutrition and carbon dioxide to places that truly need them. In the end, although there are several currents working on oceans simultaneously, they each seem to perform a necessary function that creates balance for life in the sea.
5. What can be inferred from the passage?

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The Great Energy Debate
Modern civilization is heavily dependent on energy. Without reliable power sources, we couldn’t operate machines, use transportation, communicate via Internet, or do many other things. Although everyone recognizes the importance of energy, deciding what kind of energy the world should use in the future is not a simple task. The two leading candidates for this role are green energy and nuclear energy. Currently, most of the energy we use is derived from fossil fuels. Although this energy source has got us this far, there are several problems with it. For starters, it is a finite resource which is quickly running out. Some analysts have even estimated that the Earth could run out of coal and oil within the next 50 years. Burning fossil fuels also creates large amount of pollution, which is harmful to the environment. Although fossil fuels still provide the majority of our power, governments are seeking better energy sources to use going forward. Green energy is one option that is becoming increasingly attractive. It includes technologies such as solar, wind, and hydro power. These are seen as clean sources of energy because they cause very little pollution. In addition, they are completely renewable, so there is no danger that it will run out. The major disadvantage with green energy sources is that they are not cheap. The other alternative is nuclear power. Like green energy, it is also a renewable source of power that will not run out, and it also doesn’t produce air pollution. In addition, nuclear power is more reliable than green energy, as it doesn’t depend on sunshine, rain, or wind to operate. The major issues with nuclear power are safety concerns and nuclear waste. Nuclear power plants create a considerable amount of nuclear waste which is extremely hazardous to people’s health. If they happen to have a meltdown, this could destroy the surrounding area for years to come. The recent nuclear disaster in Fukushima, Japan brought this reality into the spotlight once again. In response, Germany announced it would close down eight of its nuclear plants immediately, and close the rest by 2022. Meanwhile, other nations refuse to give up on nuclear power, stating that these disasters are rare. The debate of whether to use green or nuclear power will likely continue for some time. In the end, it is quite possible that both energy sources will be used to fuel our planet.
1. What is the focus of the passage?

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Water these plants or they will die.

A combined gross domestic ______ of the member countries of ASEAN has grown at an average rate of around 6% per year.

(494)______

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The lights went _______ in several villages because of the storm.

Rewrite sentences without changing the meaning
It is necessary to have policies that were inclusive for women and vulnerable groups.

Read the following passage and mark the letter A, B, C or D to indicate the correct word or phrase that best fits each of the numbered blanks.

Rapid urbanization can hold long-term economic, social and environmental promise for developing countries (23) ____ investments made now in infrastructure, housing and public services are efficient and sustainable, the World Bank says in a new report.

In the next two decades, cities are (24) ____ to expand by another two billion residents, as people move in unprecedented numbers from rural areas to pursue hopes and aspirations in cities. More than 90% of this urban population growth is expected to occur in the developing world, (25) ____ many cities are already struggling to provide basic needs such as water, electricity, transport, health services and education.

Report authors note that most new urban growth will not take (26) ____ in the “megacities” of the world e.g. Rio de Janeiro, Jakarta or New Delhi but rather in less commonly recognized “secondary” cities - places like Fushun in China, and Surat in India.

To help policymakers prepare for and manage growth, the report distills lessons learned from 12 countries across all geographic regions and stages of urbanization. It then translates these global lessons (27) ____ practical policy advice.

23...................

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I was so tired that I ________asleep in the chair.

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The ubiquitous bar code, developed more than twenty years ago, is not a stagnant product. On the contrary, the technology has been improved so that it can be used more efficiently. Much less expensive than a computer chip, the bar code can hold more information than it had in the past by adding a second dimension to the structure. The bar code consists of a series of parallel vertical bars or lines of two different widths, although sometimes four widths are used, printed in black on a white background. Barcodes are used for entering data into a computer system. The bars represent the binary digits 0 and 1, just like basic computer language, and sequences of these digits can indicate the numbers from 0 to 9, which can then be read by an optical laser scanner and processed by a digital computer. Arabic numbers appear below the code. The traditional bar code has been used to monitor skiers at ski lifts and to determine price and perform inventory control on groceries, drugs, medical supplies, manufactured parts, and library books to name a few. The bar code used on grocery products, introduced in the 1970s, is called a universal product code (or UPC) and assigns each type of food or grocery product a unique code. The five digits on the left are assigned to a particular manufacturer or maker and the five digits on the right are used by that manufacturer to identify a specific type or mark of product. Traditional single dimension bar codes are not readily customizable because there is little extra space. The two-dimensional bar code, with an information density of 1,100 bytes, allows a considerably greater amount of information to be coded than does the traditional bar code, including customized information. [A] It also has built-in redundancy, meaning that the identical information is duplicated on the same code. [B] Therefore, if the code is damaged, it can still be read. [C] The technology even allows pictures or texts to be contained within the code, as well as bar code encryption. [D] The new technology dramatically reduces the errors of the single dimensional bar code and reduces the enormous costs that some companies have reported in the past. 
7. A UPC is a type of .......

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
To help pay for infrastructure improvements, Governor Bill Anderson (1)------- a $1 increase on the toll fee for vehicles entering the western turnpikes. The governor’s decision took effect last week. It is expected that an amount of $80 million dollars will be generated from the increase this year and will be used to repair the state’s turnpike system. (2)-------, the Transport Authority is now scheduling tunnel and road renovations to ensure drivers’ convenience and safety. In a press conference held last week, Governor Anderson addressed the motorists’ concerns. He said that although the toll fee increase is (3)-------, he believes that it will improve road and traffic conditions for all drivers using the turnpike.

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In the Us, the first stage of compulsory education ___________ as elementary education.

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:
Of all modern instruments, the violin is apparently one of the simplest. It consists in essence of a hollow, varnished wooden sound box, or resonator, and a long neck covered with a fingerboard, along which four strings are stretched at high tension. The beauty of design, shape, and decoration is no accident. The proportions of the instrument are determined almost entirely by acoustical; considerations. Its simplicity of appearance is deceptive. About 70 parts are involved in the construction of a violin. Its tone and its outstanding range of expressiveness make it an ideal solo instrument. No less important, however, is its role as an orchestral and chamber instrument. In combination with the larger and deeper-sounding members of the same family, the violins form the nucleus of the modern symphony orchestra.
The violin has been in existence since about 1550. Its importance as an instrument in its own right dates from the early 1600’s, when it first became standard in Italian opera orchestras. Its stature as an orchestral instrument was raised further when in 1626 Louis XIII of France established at his court the orchestra known as Les vinq-quatre violons du Roy (The King’s 24 Violins), which was to become widely famous later in the century.
In its early history, the violin had a dull and rather quiet tone resulting from the fact that the strings were thick and were attached to the body of the instrument very loosely. During the eighteenth and nineteenth century, exciting technical changes were inspired by such composer- violinists as Vivaldi and Tartini. Their instrumental compositions demanded a fuller, clearer, and more brilliant tone that was produced by using thinner strings and a far higher string tension. Small changes had to be made to the violin’s internal structure and to the fingerboard so that they could withstand the extra strain. Accordingly, a higher standard of performance was achieved, in terms of both facility and interpretation. Left-hand technique was considerably elaborated, and new fingering patterns on the fingerboard were developed for very high notes.

What is the main idea presented in paragraph 3?

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What is the most famous ____________ in Ho Chi Minh city?

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Frozen Fitness
A man stands over a bathtub that is filled with ice. Although it is the middle of winter, he slowly slides into the tub and submerges his body underneath the water. Within seconds, he begins to shiver, but after a few minutes he is able to settle down. Despite the temperature, he will remain in the tub for the next 30 minutes. He is taking advantage of cold thermogenesis, a growing trend that could improve people’s health. Thermogenesis is an internal process that mammals undergo to generate heat when they are subjected to cold temperatures. In modern society, humans rarely requires this ability because we have heated homes and offices during the winter season. Recent studies, however, indicate that by doing so we could be missing out on some wonderful health benefits. Being subjected to cold temperatures regularly has been shown to boost men’s testosterone levels. It also boosts metabolism, which allows people to burn fat more efficiently. Some people have reported that cold thermogenesis also provides a mental lift once you have overcome the initial shock of the cold water. The positive effects of thermogenesis were known before, but it only started to become popular after the 2008 Olympics. One man who helped spark this craze was Ray Cronise, a NASA scientist and entrepreneur. He was reading an article that reported Michael Phelps ate 12,000 calories per day while training. The calories were so high that led him to believe that something else besides exercise was helping Phelps to stay thin and muscular: the icy water in the swimming pool. So he conducted his own experiment by drinking several glasses of ice water and exposing himself to cold water. After six weeks of this regiment, he had lost 30 pounds. There are several routines that a person can adopt if they are interested in starting their own thermogenesis routine. One method is ice baths. This method may be a bit too drastic for average people though. Instead, people may want to begin by dunking their face in cold water for a few seconds, and then gradually increase the time. Next, they can progress to cold showers and baths before moving on ice baths. An even more convenient way is to place an ice packet on the back of your neck for 15 to 20 minutes every evening. Although these methods may be extreme, many are willing to give them a go to improve their health
6. What does the phrase “by doing so” in paragraph 2 refer 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 from 1 to 5.
Drone racing is an exciting new sport, that has become popular faster than (1).......... other sport before it. Pilots steer small and lightweight, but high-powered drones along courses with obstacles. They fly through gates and around flags at speeds of over a hundred miles an hour.
 They control the drones using VR-like headgear. Every drone has a camera (2)...........to it so that spectators can also view flights either on a big screen or with special headgear.
The races take place either outdoors - in big stadiums, or indoors in old warehouses and sports arenas. (3)................ are short because the battery time of drones is limited.
(4)..............drone racing started only a few years ago there are already international competitions that take place all over the world. In professional leagues, drone pilots compete for thousands of dollars. In March, the World Drone Prix was staged in Dubai. A 16-year old British teenager not only one the race but also received a prize money of 250 000 dollars.
Television and other media have become aware of drone racing. ESPN, an Amercian sports channel, will be broadcasting international drone races starting this August. Races are also recorded and uploaded to YouTube and other video platforms (5)............. they can be viewed over and over again.
(3).................

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'I took the TOEFL. It was really hard.’ ‘ ____ a lot before you took it?’

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 from 36-42
From smartphones and tablets to apps and social media, society is ambushed from all sides with technology. Naturally, all generations embrace it differently, with younger “digital natives” generally being more connected, more switched-on and more tech literate than older age groups.
According to Pew Research, 92% of Millennials (born 1981–1996) own smartphones, compared with 85% of Gen Xers (born 1965–1980) and 67% of Baby Boomers (born 1946–1964). In terms of tech behavior, older generations tend to use their phones mostly for making calls, whereas for younger generations, a phone is their digital window to the world. Phones are used for social media, going online, texting, emailing, playing games, listening to music, and recording and watching videos.
The daily media consumption of different generations also vastly differs. Gen Z and Millennials favor streaming and online services, with 46% of teens saying they use Netflix compared to 31% of those aged over 16. Furthermore, 16-24s spend 30% of their downtime watching TV or video, compared to 40% of time spent on these activities by the average UK adult. Boomers spend a whopping 344 minutes a day watching regular TV, significantly more than any other age group.
Size also matters more depending on your decade of birth. Younger generations prefer smaller screens sizes, opting for a smartphone as their go-to tech, while Generation X and technology newbies - the Boomers, are going bigger, owning more desktops and tablets. Always in the front of the queue for the hottest tech, younger generations see technology as an integral part of their existence, and since few Millennials and Gen Z can remember a time without social media, they’re more fearless and carefree when it comes to technology. So much so, that a LivePerson report revealed 65% of Millennials and Gen Z interact more with each other online than they do in the real world.
Fundamentally, these behaviors and preferred technologies combine to create a technological generation gap, where employees, shaped by their personal experiences, demonstrate different levels of ability and willingness to adopt new tech. Constantly chasing the next update or device, switched on Millennials and Gen Z are quick to lap up the latest apps, games, and platforms, while Gen X and Boomers are generally slower to embrace technology - both at home and in the workplace.

Which best serves as the title for the passage?

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Aspirin's origins go back at least as early as 1758. In that year, Englishman Edward Stone noticed a distinctive bitter flvor in the bark of the willow tree. To Stone, this particular bark seem to have much in common with "Peruvian Bark", which had been used medicinally since the 1640s to bring down fevers and to treat malaria, stone decided to test the effectiveness of the willow bark. He obtained some, pulverized it into tiny pieces, and conducted experiments on its properties. His tests demonstrated that this pulverized willow bark was effective both in reducing high temperatures and in relieving aches and pains. In 1763, stone presented his tiding to the British Royal Society. Several decades later, further studies on the medicinal value of the willow bark were being conducted by two Italian scientists. These chemists, Brugnatelli and Fontana, determined that the active chemical that was responsible for the medicinal characteristics in the willow bark was the chemical salicin, which is the active ingredient of today's aspirin. The name "aspirin" is the trade name of the drug based on the chemical salicin, properly known as acetylsalicylic acid.The trade name "aspirin" was invented for the drug in the 1890s by the Bayer Drug Company in Germany. The fist bottles of aspirin actually went on sale to the publicjust prior to the turn of the century, in 1899.
10. Where in the passage does the author name the scientific compound that makes up aspirin?

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It was ___________easy for him to learn baseball because he had been a cricket player.