32. The people who objected to cloning human beings went on strike and _________ the traffic.

A. cut through　 　　　　　 B. faded out　　 　　 C. held on 　　　　　　　　　 D. held up　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

31. Only after he realized the significance of mastering two languages __________ English carefully.

　　 A. did he set about learning　　　　　　　　　　　　 B. did he set out learning　

C. had he set about learning　 　　　　　　　　　　 D. had he set out learning

30._________ with common sense can tell the difference between the two.

　 　 A. Whoever　　　　　 B. No matter who 　　　　 C. Anyone　　　　　　　　　　 D. Who　 　　　

29. _________ that the government can lead them out of the financial crisis, people are optimistic 　

　 about the future of the country.

A. Convincing　 　　　 B. Convinced　　 　　　　 C. To convince　 　　　　　 D. Having convinced

28. Recently a survey _______ prices of the same goods in two different supermarkets has caused

　 a heated discussion among citizens. 　

A. comparing 　　 B. compared 　　　　　　 C. compares　　　 　　 D. being compared

27. The engine of the bus was _________，and the bad weather added to the worries of the passengers.

　　 A. in vain　　　　　　　　　　 B. in good condition　　　 C. out of work　　　　　　　　　　 D. out of order　　　

26. In some of the war-torn countries temporary homes had to be put up quickly to ___________ the

　　 homeless.

　　 A. take up　　　　　　 B. take in 　　　　　　　　　　 C. keep up　　　　　　　　　　 D. keep out

25. For some time the expert __________ people of the health risks caused by passive smoking. He　

　 says he won't stop until all the smokers around him decide to quit smoking.

　　　 A. is warned　　　　　 B. is warning　　　　 　　　 C. has been warning　　　 D. has been warned

24. The news _______ Barack Obama won the Nobel Peace Prize is _______ surprised the world.

　　　 A. that；what　　　　 B. which；that　　　　　　　 C. that；which　　　　　　　 D. /；how

23. After inspecting the building, specialists discovered some faults that otherwise ___________.　

　　　 A. were overlooked 　　　　　　　　　　　　　 B. would be overlooked

　　　 C. had been overlooked　 　　　　　　　　　　　 D. would have been overlooked