There are many sources of pollution in our modern world. At present, the most severe sources are acid rain, car exhaust fumes and oil spills. Factory chimneys give (1)_________ smoke that contains sulfur dioxide and nitrogen oxide. These gases combine with the moisture in the atmosphere to (2)_________ sulfuric acid and nitric acid. When it rains, these acids dissolve in the rain and turn it acidic. Acid rain is thought to be the worst pollution problem of all. It has (3)_________ aquatic life by turning many lake into lifeless bodies of water. In these areas, there is no limestone in the rocks to neutralize the acid rain naturally. One remedy is to pump limestone into the acidic lakes. (4)_________, it is not possible to do this on a large enough scale to save all the lakes. Car exhaust fumes contain carbon monoxide and lead which are highly poisonous. In big cities, the exhaust fumes build (5)_________ 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. Offshore oil wells also discharge vast amounts of oil into the sea. Pollution of the sea can also be caused by oil spills. An oil spill may occur as a result of accidents involving oil tankers.

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"Are you ready ,Ann?" "Yes,I..........................."

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Space Debris
Once something is considered rubbish, we want to throw it away and forget about it. Yet if we are not careful about where we store it, our garbage could come back to haunt us. On the Earth, poorly discarded garbage can cause land, water, and air pollution. And now, people are starting to learn that space debris can also cause a host of different problems. Space debris is defined as a collection of objects that orbit the Earth. Space debris can be classified into two categories. One is man-made rubbish, such as old satellites, rockets, and other machinery left in space after past missions. The other is natural objects, such as meteors that are traveling through space. If you think the man-made garbage doesn’t amount to much, guess again. Researchers estimate that there are over 20,000 pieces of large debris floating around in space and approximately 300,000 smaller pieces in orbit as well. Traveling at speeds of up to 17,500 miles per hour, these objects create a great degree of danger for any spaceships when they leave or return to the Earth. We are lucky to some degree that there haven’t been too many accidents caused by space debris as of yet. Still some incidents have occurred. In 1996, a French satellite was damaged after it crashed into debris from an old French rocket. Then in 2009, an old Russian satellite collided with a working US satellite. The end result was an additional 2,000 pieces of space junk that was added to the junk pile. As the current situation can only worsen, it is now up to the international community to cooperate and create a plan to deal with space debris. For starters, several nations have pledged to take more care with the items they discard in space to cut down on future debris. Researchers are working on devising a way to label space junk, so it can be avoided. Others have proposed more creative techniques to recapture the garbage and discard it on the Earth, or destroy it with lasers. The nightmare scenario that everyone fears is if the Kessler Syndrome starts to occur. This is when the density of garbage becomes so high that it sets off a chain reaction of collisions which would raise the probability of accidents even further. Although there is not a long-term solution in place for space debris, nations are starting to understand the seriousness of this problem.
8. It can be inferred from the passage that __________

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The ………… drink in Viet Nam is tea.

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What should you consider before _________ for an exercise class?

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Only a small percentage of information on the (1) _______ is restricted to subscribers or other authorized users. The majority of Web pages are available to (2) _______ who can access a computer that connects to the Internet. The Web has become a (3) _______ for many companies selling products or services, (4)_________ a forum for people to exchange opinions and information. Museums, libraries, government agencies, and schools post information on the Web to make it (5) _______ to others.

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My family enjoys watching game shows ………….. they are very exciting and interesting.

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Vycorp Industries has announced a new initiative to reduce the amount of heat created by its data servers. Rather than inventing new cooling systems, it aims to use the ocean.1 -------. At present, thermal management requires tech companies to spend large portions of their annual budgets on cooling and ventilation systems. But by installing them deep underwater, where temperatures are always near freezing, Vycorp says it can naturally -------2 millions of dollars in cooling expenses. “We expect------- 3, benefits,” said Chief Technology Officer Shannon Simmons. “By using the ocean as a heat sink, we'll be able to deliver the same services we always have with much more 4 -------“.

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He advised me to take an English course. I_________ take it early.

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
This article (1) _______ on the game of American football, a distinct type of football that developed in the United States in the 19th century. It developed out of two other sports, soccer (2) _______ known as association football) and rugby football, each of which remains a separate sport with its own specific set of rules. American football differs slightly in (3) _______ and field size from a style of football (4) _______ mostly in Canada, called Canadian football. Other varieties of the game popular in (5) _______ parts of the world have Australian football and Gaelic football.

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Do you happen to know the name of the _____?

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We are planning on spending the weekend in the country as long as the weather stays fine.

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Hooray for Hip Hop
It is amazing how far hip hop music has come in its relatively short history. You can trace the roots of this urban art form to New York City in the 1970s. Hip hop began as a spontaneous way of entertaining crowds. DJs discovered that people loved dancing to the drum breaks in popular funk and soul records. These breaks were typically brief, so DJs would move or “scratch” records back to extend them. In addition, a master of ceremonies (MC) would sometimes grab the microphone and say a few words to get the crowd more excited. At first, the words of MCs were simple chants but they later became a more complex form of poetry. Still, for several years rap remained an underground art. Then, in the early 1980s, artists like LL Cool J, KRS-One, and Run DMC helped it reach a wider audience. Nevertheless, hip hop didn’t have an easy road to mainstream success. Many people dismissed rap music because no “real musicians” were involved in creating it. Critics blamed the beats were repetitive and stolen from other artists. Others claimed the lyrics were too negative and violent. Yet they were overlooking several things. The lyrics were often from the perspective of underprivileged youths growing up in the big city. Although these words were often dark, they painted a clear picture that allowed outsiders to understand their joys and pain. Not all hip hop songs had a heavy message, though. Others were quite humorous and showed a lighter side of street life. The influence of hip hop would spread far beyond music itself. In fact, a collection of other art forms, would develop out of it. Since hip hop music had a beat like no other music before it, new dance styles had to emerge. B-boying, more commonly called break dancing, was one of these styles. Break dancers featured lots of spinning and fancy moves that took speed, agility, and lots practice to perfect. Hip hop also helped to inspire waves of modern street graffiti. Urban artists would spray-paint their names on walls and subway cars a rebellious way of expressing themselves. After nearly three decades of popularity, hip hop has spread from New York to every continent on the earth and it is still going strong as it continues to evolve.
1. What best describes the early lyrics of hip hop?

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Don’t miss the opening ceremony of the festival.

Rewrite the sentence
I think photography is interesting but Kim finds it boring.

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The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride's family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband's family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride's family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.Not all of the effects of bride price are so positive, however. One major disadvantage to the system of bride price is that women are often married to men much older than themselves. In many African cultures, the typical age for marriage amongst women is still quite young, lower than in many cases. Yet few men at this age would have the ability to raise the bride price to marry. Thus there is sometimes a significant age gap between husbands and wives. This cuts short the education of many young women. In addition, the husband, being far older, may die whilst the wife is still relatively young, leaving her with the burden of raising the children alone.
8. Why are women often married to older men, according to the passage?

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He pulled a(n) ......................... of 10 pounds notes out of his pocket. 

_____of the difficulty, they managed to climb to the top of the mountain.

(298)_____

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Carefully conducted studies that have followed the children of working mothers have not been able to show any long-­‐term problems, compared (1)_____children whose mothers stay at home. My personal (2) _____is that mothers should be allowed to work if they wish. Whether we like it or not, there are a number of mothers who just have to work. There are many who must work out of pure economic (3) _____. Many mothers are not born to be full-time parents. After a few months at home with a much loved infant, the feel trapped and isolated. There are a number of options when it refers to choosing childcare. These range from child minders and nannies through to Granny or the kind of lady across the street. In reality, (4) _____ many parents do no have any choice; they have to accept anything they can get. Be prepared! No (5)_____ how good the children may be, some children are going to protect wildly if they are left. This is a (6) _____ normal stage of child development. Babies separate well in the first six months, but soon after that they start to get a crush on Mum and close family (7)_____. Make sure that in the first week, you allow plenty of time to help your child (8)_____. All children are different. Some are independent,(9) _____ others are more attached to their mothers. Remember that if you want to do the best for your children, it’s not the quantity of time you spend with them, it’s the (10)_____ that matters.

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:
Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very differcent types of flatfish and they have evolved in very separate ways. The skates ad rays, relatives of the rharks, have become flat in what might be called the obivious way. Their bodies have grown out sideways to form grat “wings”. They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely, fish such sas plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” than they are wide. They use their whole, vertically flattened bodies as swimming surfaces, which undulat through the water as they move. Therefore, when their ancestors migrate to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless – In evolution this problem was soleved by the lower eye “moving” around the other side. We see this process off moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion,, so that one eye, for instance the left, moves over the top of the head upwards, an old Picasso – like vision. Incidentally, some species of 20 flatfish settle on the right side, others on left, and others on either side.

The author mentions skates and rays as examples of fish that     .

____ players are not allowed to interfere with the opponent’s movements unless the player is holding the ball. 

(407)_______