4. My parents want me ____________　 ( be ) a teacher.

3. It was difficult for him ____________　 ( give ) up smoking.

2. Sorry, I kept you　 ____________ ( wait ) for me so long.

1. Would you like __________ ( sing ) at the party?

20. Jack _________________ his homework yet, so he won’t go out with his friends.

　　 A. finishes 　　　　　　　　　　　　　　　　　　　　　　　　 B. has finished

C. doesn’t finish 　　　　　　　　　　　　　　　　　　　　 D. hasn’t finished

19. -Hello, Mr. Huang!

　　 --I’m sorry, _____________ I don’t think I know you.

　　 A. and 　　　　　　　　　　　　 B. or 　　　　　　　　　　 C. but 　　　　　　　　　　　 D. because

18. “ It’s never too late ___________,” mother said to me.

　　 A. learn 　　　　　　　　　　　 B. to learn 　　　　　　 C. learning　　　　　　　　 D. learnt

17. We __________ English five years ago. We _________ it for five years.

　　 A. learned; learned 　　　　　　　　　　　　　　　　　　 B. learn; have learned

　　 C. have learned, have learned 　　　　　　　　　　　 D. learned, have learned

16. If you don’t take more　 ____________, you’ll get fat.

　　 A. medicine 　　　　　　　　 B. exercises　　　　　　 C. exercise 　　　　　　　　 D. lessons

15. It takes _____________ time to go to Beijing by plane than by train.

　　 A. more 　　　　　　　　　　　 B. fewer 　　　　　　　　 C. longer 　　　　　　　　　 D. less