28. It is the second time that he _______ our country.

　　 A. visits　　 B. visited　　 C. has visited　　 D. had visited

27. Every minute should be made use of _______ for the exam.

A. preparing　　 B. to prepare　　 C. for prepare　　 D. having prepared for

25. ______ from his accent, he must be _____ America.

　 A. Judged, from　　 B. To judge, of　 C. Judging , from　　 D. Judging ; of　

26 We were put in a position ______ we had either to admit we were less impotant, or fight the Government.

A. that　　 B. which　 C. where　　 D. on which

24. 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. ---- All the students haven’t finished their homework.

----- _________, because some students watched the final football match until far into the night.

A. Yes　　 B. No　　 C. You are wrong　　 D. Impossible

22. They have ______ signs in some places to remind (提醒) the visitors not to step on the grass.

　 A. put on　 B. put up　 C. put down　　 D. put out

21. Alice trusts you; only you can ________ her to give up the foolish ideas.

A. suggest　 B. advise　 C. insist　　 D. persuade

20. One minute she burst into ______, and the next she burst out _______. We just couldn’t catch her mood at any moment.

　 A.crying; laughter　 B. tears; laughing　　 C. tears; laughter　　 D. crying; laughing

19. In that big earthquake all their houses were ________, so they had to build new ones.

A. hurt　 B. harmed　 C. injured　　 D. destroyed