10. Without the air to hold some of the sun’s heat, the earth at night _____, too cold for us to live.

　 A. would be freezing cold 　　　　　　　　　　　　　　　　　 B. will be freezing coldly

　 C. would be frozen cold　　　　　　　　　　　　　　　　 D. can freeze coldly

9. The two strangers talked as if they _____ friends for years.

　 A. should be　　　　　　　 B. would be 　　　　　　　　 C. have been　　　　　 D. had been

8. --If he _____, he _____ that food.

　 --Luckily he was sent to the hospital immediately.

　 A. was warmed; would not take　　　　　　　　　　　 B. had been warned; would not have taken

　 C. would be warned; had not taken 　　　　　　　 D. would have been warned; had not taken

7. I didn’t see your sister at the meeting. If she _____, she would have met my brother.

　 A. has come　　　　　　　　　　 B. did come 　　　　　　　　 C. came　　　　　　　　 D. had come

6. I told Sally how to get there, but perhaps I _____ for her.

　 A. had to write it out 　　　　　　　　　　　　　　　　　　　　　 B. must have written it out

　 C. should have written it out 　　　　　　　　　　　　 D. ought to write it out

5. Without electricity human life _____ quite different today.

　 A. is　　　　　　　　　　　　 B. will be 　　　　　　　　　 C. would have been　　　 D. would be

4. Jane’s face suggested that she _____ ill, and her parents suggested that she _____ a medical examination.

　 A. be; should have 　 B. was; have　　　　　　　　 C. should be; had　 D. was; has

3. _____ it rain tomorrow, we should have to put off the visit to the Yangpu Bridge.

　 A. Were 　　　　　　　　　 B. Should　　　　　　　　　　 C. Would　　　　　　　 D. Will

2. When a pencil is partly in a glass of water, it looks as if it _____.

　 A. breaks　　　　　　　　　 B. has broken　　　　　　　　 C. were broken　　　 D. had been broken

1. You didn’t let me drive. If we _____ in turn, you _____ so tired.

　 A. drove; didn’t get　　　　　　　　　　　　　　　　　　　 B. drove; wouldn’t get 　　　　　　　　　　　　　　

C. were driving; wouldn’t get 　　　　　　　　　　　 D. had driven; wouldn’t have got