21. --- I want to choose a university to study here. Would you give me some advice?

　 --- Of course. I think you should look at the support the university that you’re interested in

　 ___________ as an overseas student.

　 A. what can offer you　　 B. can offer you what

　C. can offer you　　　　 D. what you can offer

20. I shall never forget the day ________ we got married.

　 A. on which　　 B. which　　　 C. to which　　 D. on when

19. He likes the girl _________ he has heard sing somewhere.

　 A. who　　　 B. whom　　 C. whose　　 D. which

18. He wrote a letter _________ I think was to be sent to her.

　 A. what　　　 B. for which　　 C. to which　　 D. which

17. Such an accident suddenly happened _____ had never happened before in this area.

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

16. You are saying that everyone should be equal, and this is __________ I disagree.

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

15. The boy dived into the water and after ___________ seemed to be a long time, he came up again.

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

14._________ she was invited to the ball made her very happy.

　 A. If　　　　　 B. That　　　 C. When　　　 D. Because

13. ____________ all the inventors have in common is _____________ they have succeeded.

　 A. What; what　　 B. That; that　　 C. What; that　　 D. That; what

12. __________ a terrible storm would take place in Hainan.

　 A. Word came which　 B. Word came that　 C. Word that came　 D. Words came that