Read the following article and select the best answer. Article: Hamsters are lovely small animals which are similar to mice, and some people like to keep them as pets. They need to eat a balanced diet, or they can become very sick. That's why hamsters should be fed healthy foods. Most pet stores sell hamster mix. This is a combination of foods that are just right for hamsters. Some hamsters are picky eaters. They don't eat anything they don't like, so you have to find a hamster mix that your hamster will like. Most hamsters only eat a few tablespoons a day. You should feed them at the same time every day, or you can just keep your hamster's bowl full. Remember to clean the bowl at least once a week. Hamsters also drink a lot of water, so be sure to keep the water supply full and fresh. Just like people, hamsters like treats. Besides the hamster mix, you can sometimes feed your hamster seeds, nuts, and some other people food. You should never feed your hamster anything unless you are sure that it is safe for hamsters. Feed your hamster carefully, and always take good care of your pet! Question: If hamsters don't have a balanced diet, they will _ . - become sick - drink water - store food - feel fresh
become sick

Read the following article and select the best answer. Article: When we think of Paris, Rome, Madrid, Lisbon, Athens and other European capitals, we think of them as "cities". When we think of the whole of modern London, that great area covering several hundred square miles, we do not think of it as a "city", not even a city and its suburbs. Modern London is not one city that has steadily grown larger through the centuries: it is a number of cities, towns and villages that have, during the past centuries, grown together to make one vast urban area. London today extends for nearly thirty miles from north to south and for nearly thirty miles from east to west. This is the area known as "Greater London", with a population of nine million. The "city of London" is a very small part of the whole. It is only one square mile in area, and the number of people who live and sleep in the "city" is only about ten thousand. Question: The difference between modern London and other European capitals is that _ . - it is larger and wider - it is made up of a city and its suburbs - it is made up of many cities, towns and villages - it has a large population
it is made up of many cities, towns and villages

Q: Read the following article and select the best answer. Article: What will man be like in the future--in 5,000 or even 50,000 years from now? We can only make a guess, of course, but we can be sure that he will be different from what he is today, for man is slowly changing all the time. Let us take an obvious example. Man, even five hundred years ago, was shorter than he is today. Now, on average, men are about three inches taller, so we may assume that man will continue to grow taller. Again, as time goes on, we shall have to use our brains more and more. This is likely to bring about a physical change to the head, in particular, the forehead will grow larger. Nowadays our eyes are in constant use. In fact, we use them so much that very often they become weaker and we have to wear glasses. But over a very long period of time it is likely that man's eyes will grow stronger. On the other hand, we are likely to make less use of our arms and legs, which, as a result, are likely to grow weaker. At the same time, however, our fingers will grow more sensitive because they are used a great deal in modern life. But what about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. Perhaps all these give the impression that in the future man will not be a very attractive creature to look at! This may well be true. All the same, in spite of all these changes, future man will still have a lot in common with us. Question: What serves as the evidence that man is changing? - Man's hair is getting thinner and thinner. - Man has got stronger eyes now than he ever had. - Man's arms and legs have become lighter and weaker. - Man has been growing taller over the past 500 years.
A: Man has been growing taller over the past 500 years.

Read the following article and select the best answer. Article: One answer to the question of land shortage was suggested by an organization some years ago. A city was to be built at sea, housing 30,000 people. The suggestion was to shape the city like a harbor .The outer wall of the harbor would stand on steel columns resting on the sea-bed. Naturally this could only be where the water was fairly shallow. The people would like to live in flats in the fifty-metre high outer wall. The flats would be all face inwards, and would be made of concrete and glass. The glass would be specially made and colored to control the heat and strong light from the sun. The planners called this man-made harbor would be calm. On it would be floating islands carrying more building: a hospital, two theaters, museum, an art exhibition hall and a church. On one of the islands would be a special factory to take the salt out of sea water and turn it into fresh water. People living in the city could move around on small boats driven by electricity, so there would be no air pollution from the burning of gas. There would be platforms outside the man wall for ships bringing supplies. People could also travel to the mainland by motorboat or water plane. Question: The suggestion made by the organization is to solve the problem that _ . - there is not enough space for building cities on land - land transportation has became increasingly difficult - there are too many people on land - present cities are heavily polluted by cars
there is not enough space for building cities on land