20. You have helped me out of this trouble, _____ is very kind of you.

　　　 A. it　　 　　　B. that　　　 　C. which　　　　 　D. what

18. --You know I gave up the job as a waiter and went to that little company.

---That’s ____you’ve made a mistake. That company isn’t well managed.

A. what　　 　　B. where　 　　　C. why　　 　　D. how　　　　　　

19 AIDS is said _____the biggest health challenge to both men and women in that area over the past few years.

A. to have been 　　B. to be　 　C. that it has been　 D. that is　

16.It was only when he got arrested _______.

A. then he regretted stealing.　　 　B. that did he regret stealing

C. until he regretted stealing.　 　D. that he regretted stealing.

.17.The house, _______ were damaged, is being repaired now.

A. the windows　　　　 　　　　B. whose the windows　　

C. the windows of which　 　　D. which the windows　　 　

15. He suggested the problem worth paying attention _____ at the meeting．

A．to be discussed 　　　　　　 　　B．to being discussed　　

C．to discuss　　 　　　　　　　　　 D．to discussing　　

14.It’s the first overseas trip that president Hu jingtao has made,_______?

　A. is it　　 　B. isn’t it 　　C. has he　　 D. hasn’t he　

13.In fact, not only Mary and I but also Jane___ having one exam after another.

A. Is tired with　 　　　　　　B. are tired with　

　C. is tired of 　　　　　　　　D. are tired of　

12. Rarely　_____　about her own safety ,though she was in great danger herself.　 A.　does Rose care 　　　　　　　　B.　Rose did care　

　C. Rose does care　 　　　　　　D.　did Rose care　　

11.The careless driver is ____for the traffic accident ____ yesterday．

A．to blame; happened　　　　　 　B. to blame; happening 　　

C．to be blamed; happened　　 　　D．to be blamed; happening　　　　

10. When it comes to listening to the opinions of members of your school community, do you think you are already “all ears”? The 　underlined expression most probably means______.

　 　　A. in full strength　　　　　　　　 B. bearing ideas in mind　　

C. ready to listen attentively 　　　D. having enough preparation　 　　

9. We _____ at a very attractive hotel on the way back from Paris.

　 　　A. took up　 　　　　B. made up　 　　C. put up 　　　D. picked up