44. Mrs. Black doesn’t believe her son is able to design a digital camera, ______?

　 A. does she　　　　 B. is he　　　　　　 C. doesn’t she　　　　 D. isn’t he

43. It’s not rare in ______ that people in their ______ are going to university for further education.

　 A. 90s; 50　　　　 B. 90s; 50s　　　　　 C. the 90s; 50　　　　 D. the 90s; 50s

42. After all the passengers ______, the helicopter was ______ soon.

　 A. got on; landing　　　　　　 B. got on; taking off

　C. got in; landing　　　　　　 D. got in; taking off

41. We can see the mountains ______ clearly after the rain.

　 A. at a distance　　　 B. in the distance　　 C. at distance　　　 D. in distance

40. A metal ______ Uranium gives off a kind of radiation.

　 A. calls　　　　　 B. called　　　　　　 C. is called　　　　　 D. is calling

39. Roses need special care ______ they can live through winter.

　 A. so that　　 　　　B. because　　　　　 C. even if　　　　　 D. unless

38. He didn’t keep on asking me the time any longer as he had his watch ______.

　 A. repair　　　　　 B. to repair　　　　　 C. repairing　　　　 D. repaired

37. Mrs. Wu is a teacher who is strict ______ himself and his pupils ______ his work.

　 A. with; in　　　　 B. with; about　　　　 C. in; with　　　　 　D. about; in

36. We are looking forward ______ the photo exhibition.

　 A. to visit　　　　 B. to visiting　　　 C. visiting　　　　 D. to having visited

35. Consumers should do ______ than simply complain about the poor quality of goods.

　 A. much less　　　　 B. some more　　　 C. far more　　　　 D. far less