29. Nuclear science should be developed to benefit the people _____ harm them.

　 A. better than　　　　 B. more than　　　　 C. other than　　　　　 D. rather than

28. It is a great pleasure for a woman to ________ the price while shopping.

A. cut in　 　　　　　B. cut down　　　　 C. cut off　　　　　　　　　 　 D. cut up

27. ______ the ancient Egyptians built the pyramids puzzled people for centuries.

　 A. Whether　　　　　　 　 B. What　　 　　　　　 C. How　　　　　　　 　　　 D. Where

26. No one but the experts in this field can _____ the difference between them.

　 A. recognize　　　　　 B. speak　　　　　　　　 　 C. spot　　　　　　　　　　　 　 D. predict

25. -Who______ it be that is knocking at the door?　

　 -It ______ be Father, but I’m not sure.

　 A. can; must　 　　　　B. can; may　 　 　　　C. must; can 　　 　　　D. may; must

24. The meeting we had ________ to _______ us finally.

A. looked forward; disappointing　　　　　 B. been looked forward; disappointed

C. looked forward; disappointed　　 　　　　D. been looked forward; disappointing

23. The great _____ of this computer is that it’s so cheap compared to the others.

　　 A. power　　　　　　　 B. strength　　　　　　　　　 　 C. energy　　　　　　　　　 D. force

22. The difficulty we now meet with is ___________ we can persuade him to tell the truth.

　 　A. whether　　　　　　 B. that　　　　　　　　　　　　 　 C. what　　　　　　　　　　 D. why

21. A party was given in the hall _______ the guests from France.

　　 A. in favor of　　　　 B. in need of　　　　　　　 　 C. in search of　　　 D. in honor of

20. After they ________ each other for a while, a violent quarrel finally ________.

A. glared at; broke out　 B. stared at; broke down　　　 C. glared at; broke in　 D. stared at; broke up