33. I don’t doubt　　　　　 our team will win the 4×100-meter race．

　　 A．when　　　 　　B．whether　　 　　C．that　　　 　　 D．which

32. --- Can I look at the menu for a few more minutes before I decide?

　 ---- Of course._______ sir.

　 A. Make yourself at home　　　　　　　 　　 B. Enjoy yourself

　 C. Take your time　　　　　　　　　　 　 D. It doesn't matter

31. Some medicine，when wrongly　　　　　 ，can kill a person

　　 A．taken　　　　　 B．taking　　　　　 C．take　　　　 　 D．to take

30. ---You were tired after the 10,000-meter race．weren’t you?

　 --- Yes, 　　　　　I was out of breath．

　　 A．not at all　　　 B．not a little　　　 　 C．not really　　 D．not a bit

29. After three months, these young students finally became used to the ______ of life in a big city abroad.

　 A. speed　　 　 　　　B. pace　　　　　　　　　 　 　 C. rate　　　　　　　　　 D. frequency　

28. Years ago we didn’t know this, but recent science _____ that people who don’t sleep well soon get ill.

　 A. showed 　　 　　B. has shown　 　 　　　　 C. will show　 　　 D. is showing

27. Most animals have little connection with___ animals of ___ different kind unless they kill 　

　them for food.

　 A. the ; a　 　　　　B. × ; the　　 　　　C.　 ×; a 　　　　　 D. the ; the

26. Could you please tell me where you bought the shoes you ________ yesterday?

　 A. had on　　 　　B. put on　　　　 　　C. pulled on　　　　 D. tried on

25. If we work hard, we can overcome any difficulty, ____ difficulty it is.

　 A. what　 　　　　B. how　 　　　　　　C. whatever 　　　　D. however

24. Paper produced every year is 　　　　　the world's production of vehicles.

　 　A. the three times weight of　　　　　 　　B. three times the weight of　

　 C. as three times heavy as　　 　　　　　　D. three times as heavier as