33. How can we afford to spend so much time studying one subject ____ we have another five to learn?

　　 A. once　　　　　 B. if　 　　　　　　C. though　　　　 　　D. when

32. -- How about your work with the old people e

-- You can never lose your temper and ________ always be patient when helping them to challenge their memory.

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

31. At the important conference , men usually wear a suit and tie. ________, women usually wear a dress or skirt.

　　 A. Similarly　　　 B. Especially　　 　　C. Necessarily　　 　　D. Possibly

30. --Sorry , the manager is out. Shall I have him call you when he gets back

　　 --No, I 'll call back. If I call in an hour, do you think he ________?

　　 A. has arrived　　　 B. will arrive　　 　C. arrived　　　　 　D. arrives

29. When ________ help, one often says "Thank you" or "It's kind of you".

　　 A. offered　　　　 B. offering　　　　 　C. to offer　　　　 　　D. to be offered

28. You should try to catch one or two English expressions __ you see an English film or listen to a story.

　　 A. in case　　　　 B. so that　　　　 　C. every time　　 　　D. so long as

27. The earliest forms of art, like painting and music, ________ best suited for expressing joy.

　　 A. is those　　　　 B. are these　　　 　C. are those　　　 　　D. is that

26. The world's highest wheel will be completed in 2009 in Beijing. Each of the 48 observation capsules can ________ 40 people.

　　 A. sit　　　　　　 B. fit　　　　　　 　C. limit　　　　　 　D. carry

25. The Change Project not only displays ________ rapid development of our country but will encourage young people to consider careers in ________ space exploration.

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

24. ________ their studies in China, they've traveled to some cities and talked with the local people.

　　 A. According to　 　B. Apart from　　 　C. In terms of　　 　　D. Regardless of