31. Not until all the fish died in the river, _____ how serious the pollution was.

A. did the villagers realize

B. the villagers realized

C. the villagers did realize

D. didn't the villagers realize

30. Don't leave matches or cigarettes on the table with in the _____ of little children.

A. hand　　　　　　　　 B. reach

C. space　　　　　　　　 D. distance

29. It is always difficult being in a foreign country, _____ if you don't speak the language.

A. extremely　　　　　 　　　　　　 B. naturally

C. basically　　　　　 　　　　　　 D. especially

28. (NMET1994)-Do you think it is going to rain over the weekend? -_____.

A. I don't believe　　　 　　 B. I don't believe it

C. I believe not so　　　 　　 D. I believe not

27. Many people stood near the bus stop, nervously waiting _____.

A. to pick up　　　　　　 　 B. picking up

C. to be picked up　　　 　　 D. being picked up

26. -How was your dinner date, dear?

　　 -Very nice.

A. Much more than I could have imagined

B. I can't wait to have it again

C. could have helped myself to some more

D. If only they had served better

25. Peter _____ the papers he was marking and reached for his cigarettes and matches.

A. set out　　　　　　　 　　 B. set off

C. set in　　　　　　　 　　　　　　 D. set aside

24. (2002年上海春季高考)Is this the reason _____ at the meeting for his carelessness in his work?

A. he explained　　　　　　　　　　　　　 B. what he explained

C. how he explained　　　　　　　　　　 D. why he explained

23. The bank is reported in the local newspaper, _____ in broad daylight yesterday.

A. being robbed　　　　 　 B. having been robbed

C. to have been robbed　　　　 D. robbed

22. She had a computer at home, and her parents desired that she _____ all her work at home.

A. do　　　　　　　　　　　　　　　　　　　　 B. does

C. must do　　　　　　　　　　　　　　　　　 D. would do