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 are many sources of pollution in our modern world. At present, the most (1)___________ sources are acid rain, car exhaust fumes and oil spills. Factory chimneys give out smoke that contains sulphur dioxide and nitrogen oxide. These gases combine with the moisture in the atmosphere to form sulphuric acid and nitric acid. When it rains, these acids dissolve in the rain and (2)___________ it acidic. Acid rain is thought to be the worst pollution problem of all. It has (3)___________ aquatic life by turning many lakes into lifeless bodies of water. Car exhaust fumes contain carbon monoxide and lead which are highly poisonous. In big cities, the exhaust fumes build (4)___________ and pose a health hazard to human beings. Pollution of the sea by oil threatens marine life. Much of the oil comes from ships that clean their fuel tanks while at sea. Pollution of the sea can also be caused by oil spills. An oil spill may occur as a result of accidents (5)____________ oil tankers.

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A novel is a story long enough to fill a complete book, in that the characters and events are usually imaginary.

The growth of population has its problems as we shall see. As there are more and more mouths (1)_____, there comes a great strain (2)_____ the resources of a country; this is real in the case of developing countries with the result they are unable to push ahead economically. As food is not sufficient there is chronic malnutrition in these countries especially in women and children resulting in weaker population (3)_____ would only economically be a drain on the country as their productive years will be short. As health and education are the State's (4)_____, they affect the country's finances. So in developing countries health and illiteracy continue to be the problem. The unwieldy growth of population leads to the problem of housing and sanitation. In many countries the slums are a (5)_____ to the eyes. Slums grow round big cities and are found with all the drawbacks. These are the areas of disease, filth and crime.

(10) _________

He was the only ____ that was offered the job.

(236)_____

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If there is a mechanical problem, we suggest ______ the manufacturer directly.

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Nga is____a play for the school anniversary celebration.

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This is my first visit to Paris.

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People in Tokyo are very polite ……….. friendly.

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 21: ..............

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Hurry up or we can't _________ the last bus home.

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

"Men are lazy in the home, according to an official survey (1)……… today. They have about six hours a week more free time than wives, but play very little(2)…… in cooking, cleaning, washing, and ironing, according to the Social Trends Survey by the Central (3)…… Office.
 Nearly three quarters of married women (4)…… to do all or most of the housework, and among married men the proportion who admitted that their wives did all or most of the housework was only slightly lower.
 The survey (5)…… that washing and ironing was the least popular task among men, with only one percent (6)…… this duty, compared with 89 percent of women, and 10 percent sharing equally.
 Only 5 percent of men (7)….. the evening meal, 3 percent carry out household cleaning duties, 5 percent household shopping, and 17 percent wash the evening dishes. But when household gadgets break down, (8)……  are carried out by 82 percent of husbands.
 The survey says that, despite our economic problems, the majority of Britons are substantially better (9)….. than a decade ago. We’re healthier, too - eating healthier foods and smoking less.
 The (10)…..  Briton, not surprisingly, is more widely travelled than a decade ago. More people are going abroad for holidays, with Spain the favorite destination."

4. Nearly three quarters of married women (4)…… to do all or most of the housework, 

Centuries ago, man discovered that removing moisture from food helped to preserve it, and that the easiest way to do this was to expose the food to sun and wind. In this way the North American Indians produced pemmican (dried meat ground into powder and made into cakes), the Scandinavians made stockfish and the Arabs dried dates and apricots.

      All foods contain water - cabbage and other leaf vegetables contain as much as 93% water, potatoes and other root vegetables 80%, lean meat 75% and fish anything from 80% to 60% depending on how fatty it is. If this water is removed, the activity of the bacteria which cause food to go bad is checked.

      Fruit is sun-dried in Asia Minor, Greece, Spain and other Mediterranean countries, and also in California, South Africa and Australia. The methods used vary, but in general the fruit is spread out on trays in drying yards in the hot sun. In order to prevent darkening, pears, peaches and apricots are exposed to the fumes of burning sulphur before drying. Plums for making prunes, and certain varieties of grapes for making raisins and currants, are dipped in an alkaline solution in order to crack the skins of the fruit slightly and remove their wax coating, so increasing the rate of drying.

      Nowadays most foods are dried mechanically; the conventional method of such dehydration is to put food in chambers through which hot air is blown at temperatures of about 110oC at entry to about 45oC at exit. This is the usual method for drying such things as vegetables, minced meat, and fish.

      Liquids such as milk, coffee, tea, soups and eggs may be dried by pouring them over a heated horizontal steel cylinder or by spraying them into a chamber through which a current of hot air passes. In the first case, the dried material is scraped off the roller as a thin film which is then broken up into small, though still relatively coarse flakes. In the second process it falls to the bottom of the chamber as a fine powder. Where recognizable pieces of meat and vegetables are required, as in soup, the ingredients are dried separately and then mixed.

      Dried foods take up less room and weigh less than the same food packed in cans or frozen, and they do not need to be stored in special conditions. For these reasons they are invaluable to climbers, explorers and soldiers in battle, who have little storage space. They are also popular with housewives because it takes so little time to cook them.

(90)__________

Read the passage below carefully, and then choose the best answer:
Clean and Popular
Wind power is a very clean source of energy. This is how wind power works. Wind makes windmills spin. When the windmills spin, they make electricity. Then we can use the electricity. Many people think that wind power is new, but that is not true. For thousands of years, people have used wind to sail boats and move water. We still do those things today, but these days we mostly use wind power to make electricity. Wind power is a very popular source of energy. Most people think that should use it more and more. First of all, it is clean. Windmills don’t pollute the environment at all. Second, we can use wind power forever. After all, we will always have wind. In addition, wind power is cheap, and it is getting even cheaper. A lot of people don’t understand wind power very well. They believe that there are problems with wind power, but many of those problems are not real. For example, some people say that windmills are dangerous for birds. That used to be true, but it isn’t true anymore. Old windmills killed birds because they spun very fast. New windmills spin slowly, and they aren’t dangerous for birds. However, there are real problems with windmills. One problem is that many people think windmills are very ugly. This is a problem for some people, because windmills are often in very pretty areas. Besides, wind doesn’t blow all the time, so we can’t use wind power all year round. Finally, windmills are noisy. Wind power is becoming more and more common. Right now, more than 80 countries use wind power. About 2.5 percent of the world’s power comes from the wind. For some countries, that number is a lot higher. Wind power gives Denmark more than 25 percent of its electricity.
6. Why don’t new windmills kill birds?

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People are destroying the air by adding ...... to it.

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
The cause of tooth decay is acid, which is produced by bacteria in the mouth. The acid removes minerals from tooth enamel, allowing tooth decay to begin; the saliva in your mouth encourages remineralization and neutralizes the acid. The rate at which bacteria in the mouth produce acid depends on the amount of plaque on the teeth, the composition of the microbial flora, and whether the bacteria of the plaque have been "primed" by frequent exposure to sugar. To keep your teeth healthy, a regular dental hygiene program should be followed.
Removing plaque with a toothbrush and dental floss temporarily reduces the numbers of bacteria in the mouth and thus reduces tooth decay. It also makes the surfaces of the teeth more accessible, enabling saliva to neutralize acid and remineralize lesions. If fluoride is present in drinking water when teeth are forming, some fluoride is incorporated into the enamel of the teeth, making them more resistant to attack by acid. Fluoride toothpaste seems to act in another way, by promoting the remineralization of early carious lesions.
In addition to a regular dental hygiene program, a good way to keep your teeth healthy is to reduce your intake of sweet food. The least cavity-causing way to eat sweets is to have them with meals and not between. The number of times you eat sweets rather than the total amount determines how much harmful acid the bacteria in your saliva produce. But the amount of sweets influences the quality of your saliva. Avoid, if you can, sticky sweets that stay in your mouth a long time. Also try to brush and floss your teeth after eating sugary foods. Even rinsing your mouth with water is effective. Whenever possible, eat foods with fiber, such as raw carrot sticks, apples, celery sticks, etc., that scrape off plaque, acting as a toothbrush. Cavities can be greatly reduced if these rules are followed when eating sweets.

According to the passage, all of the following statements about plaque are true EXCEPT     .

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. I ............Louisiana state University.

Read the following passage and choose the best answer (A, B, C, D):
Cholera, a highly infectious disease, has resulted in millions of deaths time after time over centuries. It is caused by the bacterium Vibrio cholera, first isolated by Robert Koch in 1883. The organism enters the body through the digestive tract when contaminated food or water is ingested.The bacteria multiply in the digestive tract and establish infection. As they die, they release a potent toxin that leads to severe diarrhea and vomiting. This results in extreme dehydration, muscle cramps, kidney failure, collapse, and sometimes death. If the disease is treated promptly, death is less likely. In many countries, a common source of the organism is raw or poorly cooked seafood taken from contaminated waters. The disease is especially prevalent after a natural disaster or other destruction that results in a lack of fresh water. Sewer systems fail, and waste travels into rivers or streams; piped water is not available so people must take their drinking and cooking water from rivers or streams. Because people frequently develop communities along waterways, the disease can be spread easily from one community to the next community downstream, resulting in serious epidemics
6. Which of the following would be an appropriate title for this passage?

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
The mineral particles found in soil range in size from microscopic clay particles to large boulders. The most abundant particles - sand, silt, and clay - are the focus of examination in studies of soil texture. Texture is the term used to describe the line composite sizes of particles in a soil sample, typically several representative handfuls. To measure soil texture, the sand, silt, and clay particles are sorted out by size and weight. The weights of each size are then expressed as a percentage of the sample weight.
In the field, soil texture can be estimated by extracting a handful of sod and squeezing the damp soil into three basic shapes; cast, a lump formed by squeezing a sample in a clenched fist; thread, a pencil shape formed by rolling soil between the palms; and ribbon, a flatfish shape formed by squeezing a small sample between the thumb and index finger. The behavioral characteristics of the soil when molded into each of these shapes, if they can be formed at all, provides the basis for a general textural classification. The behavior of the soil in the hand test is determined by the amount of clay in the sample. Clay particles are highly cohesive, and when dampened, behave as a plastic. Therefore the higher the clay content in a sample, the more refined and durable the shapes into which it can be molded.
Another method of determining soil texture involves the use of devices called sediment sieves, screens built with a specified mesh size. When the soil is filtered through a group of sieves, each with a different mesh size, the particles become grouped in corresponding size categories. Each category can be weighed to make a textural determination. Although sieves work well for silt, sand, and larger particles, they are not appropriate for clay particles. Clay is far too small to sieve accurately; therefore, in soils with a high proportion of clay, the fine particles are measured on the basis of their settling velocity when suspended in water. Since clays settle so slowly, they
are easily segregated from sand and silt. The water can be drawn off and evaporated, leaving a residue of clay, which can be weighed.

It can be inferred from the passage that the sediment sieve has an advantage over the hand test in determining soil texture because         .

Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions.
Ireland doesn't allow people to smoke in bars.

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 :
The oceans of the world are precious because of (1)_________ they do for all life on the Earth. They help regulate the temperature of the planet and they are home to a myriad of sea creatures – many of which we depend on (2)________ sources of food. However, due to our consumption and improper disposal of plastic items, human beings have created a swirling mess of garbage. The one located in the Pacific now known as the Great Pacific Garbage Patch, and it is not a pretty sight. In an ideal world, all of the plastic would be recycled and there would be zero waste. This is not the case, however, and a huge amount of the plastic ends up making its (3)_________ to our oceans due to carelessness. (4)__________ the plastic is part of rain runoff coming from a landfill or just a thoughtless discard of a piece of plastic onto the ground, if it ends up in the Pacific Ocean, it will eventually become part of the disgusting patch of garbage. The Great Pacific Garbage Patch may be impossible to (5)__________ but it is doing a lot of harm to sea life. If anything, we can do our best to avoid over-using plastic

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An old farmer said that their living _________ a lot thanks to the knowledge their children had brought home.