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:
An air pollutnt is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled – a far cry from the extensive list of harmful subtances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.
Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and notrigen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature’s output of these compounds dwarfs that resulting from human activities.
However, human production usually occurs in a localized area, such as as city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a subtance to be a pollutant; in fact, the numerial value tells us little until we know how much of an increase this represents over ther concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

What does the passage mainly discuss?

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 :
Waves don’t always (1)_________ the beaches with enough height or force to allow a sport such as surfing. The surfers in the 1960s looked for something that would allow them to have the thrill of riding waves without having to actually go in the water on days when it looked more like a (2)_________ rather than a series of hills reaching the shore. The simple solution was to put wheels on a board, and before long, a new style of surfing was born, but it was done on land. Looking back, it is easy to see how skateboarding could become more popular than even surfing. To surf you need coastline and waves, but to skateboard, all you need is a paved surface. As its popularity grew, skateboarding took (3)_________ new forms, and adventurous skateboarders tried new stunts. Skateboard parks started popping up throughout several countries, and there was plenty of innovation in skateboards. Early skateboards had metal wheels, usually (4)_________ from roller skates. Clay wheels replaced these, followed by the special urethane wheels that are used today. The innovations with wheels made the sport safer in many ways, but they also (5)_________ the stunts to become more and more extreme.

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I would rather stay at home than go out.

He had been expected to cope well with examinations and ____ good results.

(242)______

Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage.

The Emergence of Megacities

The urban shift over time has led to the emergence of the megacity – a city with a population of 10 million or more. New York City and Tokyo were the first (21)______megacities, both (22)________an urban population of over 10 million by the 1950s. But today they are (23)_________alone in their size. In 2014, there were 28 megacties across the planet – from Sao Paulo, Brazil to Lagos, Nigeria and London, England to Shanghai, China – and all major global regions except Oceania are (24)_______with megacities.

Most of the megacities in recent years are located in Asia and Africa. In fact, it is where seven of wight newest megacities can be found and where 10 of the 12 (25)_________megacities in 2030 will be located. From 2010 to 2015, Kinshasa’s population grew (26)________   over 23 percent, and today over half of 11.6 million residents are under 22 years old. A (27)________of factors has led to this growth including migration from rural areas, high fertility rates, and widening of the city’s boundaries. The population is (28)________almost all support structure in the city (29)_______the threat of food shortages, traffic (30)__________, and insufficient education facilities have become an obvious reality.

Question 23: .............

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The coffee was _____ to drink.

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There is a strange symbol ..................... the screen.

He studies ____his two brothers. 

(198)____

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The campaign will hopefully ensure the survival ...... the tiger.

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……………..the time passes, …………….I feel ! The deadline of my thesis is coming, but I have just finished half of it.

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Columbus............America more then 400 years ago.

SEATTLE (May 1 ) – Researchers at technology firm Nylobe, Inc., are working to develop a sensor capable of detecting corrosion caused by environmental exposure. Corrosion is a major contributor to ---143--- losses in the aircraft industry each year. "This will be a major ---144--- for commercial airline fleets," says Mel Laveau, Nylobe's CEO. "The sensor will decrease both labor and maintenance costs   without being too expensive."
According to Ms. Laveau, the sensor will work by detecting corrosion in its early stages, when the problem can be corrected simply by removing the corroded material. ---145---. In the structure of large aircraft, some critical joints can be particularly susceptible to corrosion. ---146---, the sensor can be used to inspect these areas and then target the most likely areas of concern.

144.....................

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
MEMORANDUM
TO : Accounting Staff
FROM : Ananda Jeyraj, Comptroller
RE : Revised deadline for departmental audits
DATE : April 3
Since we are short of two staff members who went on a business trip, I have decided to (1)------- the April 12 deadline for the quarterly audits of all department budgets. Your reports on the financial status of each section of the corporation will be due on  April 28. I cannot prolong the due date any later than this, though. I appreciate (2)------- hard work and will keep it in mind when performance-based salary increases are (3)------- at the end of the year

Choose the letter A, B, C or D to complete the sentences with given words:
He/ see/ advertisement/ the Youth Newspaper/ February 22th.

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Teenagers often have their ________ who they admire very much.

Thank you for agreeing to consult on the Canterbury Airport redesign project. ---139---. As a result, I am particularly eager to hear your ideas about upgrading our main terminal. Can we meet this week? There are a number of ---140--- restaurants near my office. If you are available this Friday, we could meet at Celia's Café on   Cumberland Street. I would also like a few of my colleagues to ---141--- us. They would appreciate ---142-- ways to enhance the airport user's experience.

140...............

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:
Recent technological advances in manned and unmanned vehicles, along with breakthroughs in satellite technology and computer equipment, have overcome some of the limitations of divers and diving equipment for scientists doing research on the great oceans of the world. Without a vehicle, divers often became sluggish, and their mental concentration was severely limited. Because undersea pressure affects their speech organs, communication among divers has always been difficult or impossible. But today, most oceanographers avoid the use of vulnerable human divers, preferring to reduce the risk to human life and make direct observations by means of instruments that are lowered into the ocean, from samples take from the water, or from photographs made by orbiting satellites. Direct observations of the ocean floor can be made not only by divers but also by deep-diving submarines in the water and even by the technology of sophisticated aerial photography from vantage points above the surface of more than seven miles and cruise at depths of fifteen thousand feet. In addition, radio-equipped buoys can be operated by remote control in order to transmit information back to land-based laboratories via satellite. Particularly important for ocean study are data about water temperature, currents, and weather. Satellite photographs can show the distribution of sea ice, oil slicks, and cloud formations over the ocean. Maps created from satellite pictures can represent the temperature and the color of the ocean's surface, enabling researchers to study the ocean currents from laboratories on dry land. Furthermore, computers help oceanographers to collect, organize, and analyze data from submarines and satellites. By creating a model of the ocean's movement and characteristics, scientists can predict the patterns and possible effects of the ocean on the environment.
Recently, many oceanographers have been relying more on satellites and computers than on research ships or even submarine vehicles because they can supply a greater range of information more quickly and more effectively. Some of humankind's most serious problems, especially those concerning energy and food, may be solved with the help of observations made possible by this new technology.

This passage suggests that the successful exploration of the ocean depends upon

WTO accession also brings serious challenges, requiring Vietnam’s economic sectors to open ______ door to increased foreign competition.

(295)_____

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Because of the drought, many people starved to ______.

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The Chinese eat special ____ for the moon festival. They are sweet and are made with a lot of eggs.

Read the following passage and mark the letter A, B, C, or D to indicate the best option for each of the blanks.
Our classes take place for three hours every morning from Monday to Friday. The (1)................ class size is twelve and the average is ten. We use modern methods (2)....................... teaching and learning, and the school has a language laboratory, a video camera and recorders. You will only be successful in improving your English; however, if you work hard and practise speaking English as much as you can. You will take a  short (3)....................... in English  as soon as  you arrive.  In this way, we can put you  in a (4)..........................at the most suitable level.
The emphasis is on oral communication practice in a wide (5)............. of situations at the advanced knowledge. You will learn how to use language correctly and appropriately when you talk to native speakers. In addition, you will develop such study skills as reading efficiently, writing articles and reports, and note-taking from books and lectures.

(4)...............................