17. My wallet is nowhere　　　　 . It must have been stolen when I was on the bus.

　　　 A. to find　 　　　　 B. finding　　　 C. to be found　 　　　　　　　　 D. being found

16. When I got home, I found the door open. A terrible thought　　　 me-had anyone broken into the house?

　　　 A. beat　　 　　　　 B. struck　　 C. knocked　　 　　　　　　 D. appeared

15. Tom, you lend me some money when I want to buy a car,　　　 ?

　　　 A. don’t you　　 　　　　 B. do you　　　　　 C. will you　 　 D. haven’t you

14. His mother talked to him for minutes while he was watching TV, but 　　　　.

　　　 A. little heard he　　　 　　　 B. little he heard

　　　 C. little he did hear　　　 　　 D. little did he hear

13. -Is there any possible way to help them get rid of such a bad habit?

-To tell the truth, it’s very hard. But we　　　 on this problem.

　　　 A. worked　　　 　　　　 　　B. had worked

　　　 C. are working　　　　 　　　　　　　 D. had been working

12. A study shows that students living in non-smoking dorms are less likely to　　　 the habit of smoking.

　　　 A. make up　　　　 　 B. pick up　　　 C. draw up　　　　 D. turn up

11. -　　　　 we stay at home or go out for a walk?

-Up to you.

　　　 A. Dare　　　 　　　 B. Shall　　　　 　 C. Can　　 　 D. Do

10. -I felt it very difficult to carry on the work all by myself.

-I could have helped you, but you　　　　 me to.

　　　 A. hadn’t asked　　　 B. didn’t ask　　　 C. haven’t asked　　　　 　 D. don’t ask

9. Understanding the cultural habits of another nation, especially　　　 containing as many different cultures as America is a difficult thing.

　　　 A. the one　　　 　 B. one　　 　 C. it　　　 　　 D. either

8. He gave us another piece of advice,　　　　 of great help to the research work.

　　　 A. which I think is　　　 　　 B. which I think it is

　　　 C. I think which is　　　 　 D. I think it is