A. to be B. to have been C. being D. be
46. My mother can’t get ___ because she has rheumatism (风湿病).
A. about B.on C. through D. in
47. I was very much put ___ by Mark’s rude behavior; it really annoy ed me.
A.over B.off C.up D.by
48. You ___ Jim anything about it. It was none of his business.
A. needn’t have told B. needn’t tell C. mustn’t have told D. mustn’t tell
49. All of us would have enjoyed the party much more if there___ q uite such a crowd of people there.
A. weren’t B. hasn’t been C. hadn’t been D. w ouldn’t be
50. Firms that use computers have found that the number of staff ___ quality control can be substantially reduced.
A.whose B.as C.what D.that
51. ___ at in this way, the present economic situation doesn’t seem so gloomy.
A. Looking B. Looked C. Having looked D. To look
52. Many people are ___ to insect bites, and some even have to go to hospital.
A. insensitive B. allergic C. sensible D. infected
53. When you’re driving on a motorway, you must obey the signs telling you to get into the right ___.