单选题If you associate with such people, I"m afraid you ______ serious trouble.

单选题(How) can I convince you (of that) we have almost (Used up) our (supplies)?

单选题The law requires equal treatment for all, __________ of race, religion, or sex.

单选题The purpose of this test is to measure students'__________to learn instead of their present achievements.

单选题Mary shouted at the top of her voice ______ because there was so much noise aroundher.A. making herself hearB. to make herself hearC. making herself heardD. to make herself heard

单选题When the farmer came back from work, his pet dog jumped out______the door to welcome him.

单选题She thinks it will rain this afternoon, but her father thinks __________.

单选题While in London, we paid a visit to the hospital founded ______ the nurse Florence Nightingale.

单选题I could have done it better if I ______ more time.

单选题No one doubts ______ it is true or not.

单选题—______？ —Yes, I"ll have some salad, roast beef, and mashed potatoes.

单选题The ATMs enable bank customers to access their money 24 hours a day ______ ATMs are located.

单选题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 the average, men are about three inches taller. Five hundred years is a relatively short period of time, so we may assume that man will continue to grow taller. Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 20% of the brain's capacity. (13) As time goes on, however, we shall have to use our brains more and more, and eventually we shall need larger ones. This is likely to bring about a physical change to the head, and the forehead, in particular, 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 very long period of time it is likely that man's eyes will grow stronger. On the other hand, we tend to make less use of our arms and legs. These, 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? It will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future, then, both sexes are likely to be bald. Perhaps all this gives the impression that 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. He will still be a human being, with thoughts and emotions similar to our own.

单选题You should turn off all the water tonight ______ water freezes and the pipes burst.

单选题Mike: You look a bit dull today. ______? Susan: I have some bad news. I got fired. Mike: Oh, no! You must be kidding. How come? Susan: It"s a long story.