34. Two hydrogen atoms and one oxygen atom form a polar molecule,　　　　 with a slightly positive end and a slightly negative end.

　 A. which　　　　　 B. that　　　　　 C. it　　　　　　 D. one

32. Normally, when eating in a private home, it is considered good manners to take　　

is served and not to ask for something different，　　　　 the hostess gives you

a choice.

　 A. whatever; if　 B. whatever; unless　 C. anything; if　　　 D. anything; unless

　 A. to slow down　　 B. slows down　 C. to be slowed down　 D. slowed down

31. 　　　　just south of Yunnan and Guangxi, Vietnam is　　　　 easy reach and offers exciting adventures at a reasonable price.

　　 A. Locating; within　　 B. Located; in　　　 C. Located; within　 D. Locating; in

30. Was it in 2000　　　　 he was still in middle school　　　　 this boy became an expert at computer?

　　 A. when; that　　 B. that; where　　　 C. when; where　 D. that; that

29. Can you think of some cases　　　　 drivers obviously knew the traffic rules but didn't obey them?

　 　A. why　　　　　　 B. where　　　　　 C. as　　　　　 D. which

28. The two old sisters, who　　　　 for more than 30 years by the Taiwan Strait, held each other and burst into tears.

　　 A. have been separated　　　　　　 B. have separated

　　 C. has separated　　　　　　　　　 D. has been separated

27. It is almost five years　 　　　　　we saw each other last time.

A. before　　　　 　 B. since　　　　　 　　　 C. after　　　　　　 　　　 D. when

25. She ______ be at the airport, for I saw her in the lecture hall five minutes ago.

A. must not　　 　　 B. won't　　　　 　　　　　　 C. can't　　 　　　　　　　 D. may

26　 -You haven't said one word about the design, Joe. What's your idea?

　　 -Sorry. I　　　　 about something else.

　　 A. thought　　 B. am thinking 　C. was thinking　 D. had thought

24. As　is　known　to　us　all,　traveling　is　_____,　but　we　often　feel　____when　we　are　back　

from　travels. 　 　 A.　interesting;　tired　B.　interested;　tiring 　 C.　interesting;　tiring　D.　interested;　tired

23. Hanging on the wall ______ two splendid oil paintings.

A. has　　　　　　 　　　 B. have　　 C. is　　　　　　　 D. are