26. Man must stop _______ the earth’s atmosphere.

A. filling B. wasting C. polluting D. blackening

27. We can’t _______ another 100 kilometers any more.

A. have B. turn C. make D. reach

28. Is Mary ______ to join in us?

A. supposed B. exposed C. supported D. indicated

29. I want to be told all _______.

A. which happen B. which happened

C. that had happened D. that had been happened

30. We’ve all heard of Thomas Edison, _______ who invented the electric light and many other things.

A. man B. a man C. the man D. men

31. Don’t tell me such things _______ you are not certain.

A. that B. which C. those D. as

32. _______ a microscope we can see different kinds of things that are unable to be seen by our naked eyes.

A. In terms of B. In place of C. By means of D. By far

33. Jackson went to work ______ his illness.

A. besides B. even though C. in spite of D. although

34. Anybody will do, _______ he is responsible for that.

A. as far as B. so far as C. as long as D. as soon as

35. I suppose they have known about it, _______?

A. am I B. am not I C. have they D. haven’t they

36. It ______ him ten years to write that novel.

A. took B. spent C. cost D. costed

37. The students are looking forward to _______ their holidays in Japan.

A. spend B. spending C. for spend D. spent

38. They all ______ mentioning that girl.

A. avoided B. got away C. ran away D. escaped

39. Human beings should find a new _______ of energy.

A. orient B. source C. origin D. souse

40. The couch is comfortable to _______.

A. sit B. be sat C. sitted D. sit on

41. So loudly _______ that all the people in the room got a fright.

A. he shouted B. shout he C. did he shout D. he did shout

42. He is the only one of the sons in the family who ______ received high education.

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

43. We think of Mr. Li ______ our good friend.

A. is B. to be C. as D. has been

44. The mountain is 1,000 feet _______ the sea level.

A. over B. higher C. above D. high

45. The road will be blocked if there _______ another snow.

A. is B. will be C. to be D. will have

46. David like country life and has decided to _______ farming.

A. get hold of B. get along with C. go in for D. go thorough

47. These children have an advantage _______ those in calculation.

A. over B. than C. to D. with

48. Shanghai has a larger population than _______ in China.

A. any city B. any other cities C. other city D. any other city

49. In some countries there are a lot of young people now need _______teeth.

A. false B. untrue C. wrong D. erroneous

50. This book costs ______ that one.

A. twice more B. twice more as C. two times more as D. twice as much as