31.　 It was _______back home after he finished the report.

A. not until midnight did he go　　　　　　 B. until midnight that he didn’t go

C. not until midnight that he went　　　　　 D. until midnight when he went

30. The written record of our conversation doesn’t ______what was actually said. There are a lot of mistakes.

　 A. correspond with　 　　　B. relate to　　　　　 C. look into　　　 D. compare with

29. ______ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.

　A. Being separated 　 　　　　　　　　　　　B. Having separated

C. Having been separated　　　　　　　　　 D. To be separated

28. --Do you think I could borrow your dictionary?

　　 -- _________ .

A. Yes, you may borrow　 B. Yes, you could　　 C. Yes, go on　 D. Yes, help yourself

27. --We are leaving for America next Friday.

　　 --So why not come to spend _______days with us?

　 A. these all last few　　　　　　　　　　　 B. these last few all　

C. all these last few　　　　　　　　　　　 D. all last these few

26. In many ways China’s rapid growth has been seen as a(n) _______ to improve the cooperation with other countries.

A. motivation　　　　　 B. attempt　　　　　 C. conception　　 D. realization

25. _______ was known to all, perseverance is a kind of quality and that’s ______ it takes to do anything well.

A. As; which　　　　　 B. As; what　　　　　 C. It; which　　　 D. It; what

24. Many new workers _______ trained and in two months they will _______ to build a new railway.

　　 A. are; be sending　　 B. are being; be sent　　 C. are; send　　　 D. will be; be to send

23. This is a very special flower and it can _______a strong sweet perfume at night.

A. given in 　　　　　B. give up　　　　　 C. give out 　　　　D. give over

22.--What’s up, Mike? You look pale.

　 --Oh, I’m not feeling well in the stomach. I _______so much fried chicken just now.

A. shouldn’t eat　　　　　　　　　　　　　 B. mustn’t have eaten

C. shouldn’t have eaten　　　　　 　　　 　D. mustn’t eat