not told b. not be told c. will not be told d. must not be told
25. 25.______,we could not have finished the work on time.
a. a. If they do not help us b. Was it not for their help
c. Should they offer to help us d. But for their help
26. 26.If we had been more careful, we ______ much better results now.
a. got b. had got c. would be getting d. would have got
27. 27.Henry ______ a rich man today if he had been more frugal in the past.
a. would be b. is c. will be d. was
28. 28.They thought it desirable that an armed guard ______ in readiness.
a. stands b. stand c. stood d. would stand
29. 29.All science students, ______,should have a good foundation in basic sciences.
a. a. whether they are future physicists and chemists
b . they are future physicists of chemists
c. c. they should be future physicists of chemists
d. d. be they future physicists or chemists
30. 30.Sally can’t have written tome, or ______ the letter by now.
a. I’ll get b. I’ll have got c. I’d have got d. I’d get
31. 31.I should very much like to have gone to the party but I ______.
a. am not invited b. was not invited c. shall not be invited d. am not being invited
32. 32.There is a general understanding among the members of the Board of Directors that chief attention ______ to the undertaking that is expected to bring in highest profit.
a. is given b. gives c. should be given d. must be given
33. 33.One of the requirements for a fire is that the material ______ to its burning temperature.
a. be heated b. is heated c. would be heated d. to heat
34. 34.“Did you go to see the football match yesterday?”
“No. I didn’t feel well, but I would have gone if I ______.”
a. a. did b. have c. would d. had
35. 35.If we had known that she had planned to arrive today, we ______ her at the bus station.
a. may have met b. might meet c. may meet d. might have met
36. 36.We’re safer in a train than we would be if we ______ any other way.
a. traveled b. had traveled c. travel d. have traveled
37. 37.He told me how he had given me shelter and protection without which I ______ of hunger and cold.
a. would be died b. would have died c. would die d . will have died
38. 38.______ today, he would get there by Friday.
a. a. Was he leaving b. If he is leaving c. Were he to leave d. If he leaves
39. 39.Had electronic computers not been invented, many problems of space flight ______.
a. a. could be not solved b. could not be solved
b. b. could not have been solved d. could not have solved
40. 40.He is a poorly learnt man. But he acts as though he ______.
a. is b. were c. should be d. seems like
41. 41.The driver looked over the engine carefully lest it ______ on the way.
a. goes wrong b. go wrong c. went wrong d. would go wrong
42. 42.______ the fog, we should have reached our destination.．本．作．品．由．．網．提．供．下．載．與．在．線．閱．讀．
a. Because of b. In spite of c. In case of d. But for
43. 43.The old man went to office on foot, but he ______ by bus.
a. might have gone b. ought have gone c. could have gone d. should be gone
44. 44.He is working hard for fear that he ______ to pass the exam.
a. fails b. may fail c. should fail d. would fail
45. 45.She put on her glasses in order that she _____.
a. can see b. saw c. had seen d. might see
46. 46.Whatever ______ we’ll go ahead.
a. had happened b. will happen c. might happen d. may be happened
47. 47.If I ______ out of ink, I might have finished writing the paper.
a. hadn’t run b. shouldn’t run c. didn’t run d. haven’t run
48. 48.But for your advice, I ______ into trouble.
a. would get b. got c. might have got d. should get
49. 49.______ for the traffic jam, I should have covered fifty miles.
a. Had it been b. Had it not been c. It had not been d. It not had been
50. 50.Were