32. Shopping online can save much time as you _______ go to a shop or walk around crowded

shopping centers.

　 A. don’t have to　 　 B. oughtn’t to　　 　　　 C. won’t　　　　　 D. mustn’t

31._______ there are living creatures in the outer space as those on Earth hasn’t been proved until

now.

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

30. With so many orphans _______, the charity organization calls for more donations.

A. to look after　　　　 B. being looked after　　 C. to be looked after D. looked after

29. Welcome to the Science Museum, everyone! This stone axe _______ in South Africa and

experts can’t be exactly sure about its use.

　 　A. had been found　 　　　 B. was found　 　　 C. has been found D. would be found

28. Some biologists believe this is an ancient survival strategy, _______ a diet with 30 percent

fewer calories than usual increased life span.

　 　A. for which　　　 B. to which　　　 　　　 C. of which　　　 D. in which

27. The county, ________ in the north of Shanxi, has a history of more than 1,400 years.

A. located　 　　　　 B. to be located　 C. being located　 　 D. locating

26.-Shall we attend the concert this evening?

　　-Great idea, _______ we can do some shopping first.

A. when　　　　　 B. where　　　　 C. since　　　　　 D. if

25.-Why do English people talk so often about the weather when they start a conversation?

　-Well, it’s probably because the weather is a(n)________ topic.

A. safe　　　　 　　 B. sensitive　　　 C. amazing　　 　 D. ordinary

24. People in Los Angels have no idea of distance on the map, so they measure distance ________

time not miles.

A. by way of　 　　　 B. by means of　 C. for lack of　　 　 D. on account of

23.-What kind of food do you prefer?

　-______ but Japanese.

　 -How about Korean, then?

A. Something　　 　 B. Nothing　　 　　 C. Anything　　 　　 D. Everything