虚拟语气练习题用所给动词的适当形式填空：Part A.1. If people (drive) more slowly, there wouldn t be so many accidents.2. If you had worked carefully, you (not make) so many mistakes.3. The boat wouldn t have drifted away, if we (tie) it up.4. If I had known you already (have) a typewriter, I (not, buy) one for your birthday.5. If he (be) here this afternoon I would go with him.6. If it were to rain tomorrow, the match (postpone).7. But for your help, we (not be) able to finish the work in time.8. If it (not, be) for the leadership of the Party, we would not have achieved so much.9. I wish I (study) hard while I was young.10. It is about time that fence (mend).11. My request is that we (hold) another session to discuss the problem.12. It is strange that the car (break) down at exactly the same place where it (break) down yesterday.13. The baby smiled as if he (understand) what his mother (say).14. He talked as if he (do) all the work himself, but in fact Tom and I (do) most of it.15. If only we (have) a phone! I m tired of queuing outside the public phone box.16. “Can we come in late tomorrow? ” “I d rather you (come) in on time. ”17. He looks as if he (be) ill for a long time.18. He always talks as though he (address) a public meeting.19. If a metal (heat), it will expand.20. I (stay) home if it rains this evening.Part B.1. She would call you immediately if she (need) help.2. If I had seen the movie, I (tell) you all about it now.3. If he (decide) earlier, he could have left on the afternoon flight.4. I (take) my umbrella with me when I (come) out this morning, I (not be) so wetnow.5. If you had listened to me, you (not be) in such trouble now.6. I wish they (stop) making so much noise so that I could concentrate on my work.7. It is inconceivable that he (not see) me that day for I (wave) to her.8. What a pity that he gave orders that all those lovely trees (cut) down.9. Mr. Jones would rather (stay) home last night.10. Henry would rather that his brother (work) in the same department as he does.11. Electric current flows through a conductor as though it (be) a fluid.12. We (invite) her to the party but we didn t know that she (already, come) back from abroad.13. Today s industrial production (be) impossible without the contribution made by the science of physics.14. I hate driving. I d much rather you (drive).15. The guests (arrive) last night, but there is still no news about them.16. Mother(feel) anxious if I came home late.17. Even if I (be) with you then, I (can, not, do) much for you.18. A less conscientious man (not, try) so hard to get this job done.19. Do you wish that you (have) a sister like her?20. Isn t it surprising that he (have) two car accidents during the past week?选择题：1. If I you, I d join the army.A. am B. was C. were D. would be2. “If the sun tomorrow, what would we do? ”A. will not riseB. would not riseC. did not riseD. does not rise3. If you to see Mary, what would you tell her?A. are B. will be going C. must D. were4. I would have said “Hello ” to him if I your brother.A. could see B. had seen C. will see D. will have seen5. If you had wanted to buy a record, what ?A. would you buyB. had you boughtC. would you have bought D. would you be buying6. If the tablets had dissolved, John .A. would probably dieB. had probably diedC. probably would be diedD. would probably have died7. if you had lost your watch?A. Hadn t you been upset B. Wouldn t you be upsetC. Weren t you upsetD. Wouldn t you have upset8. “I was so sorry to hear about Jack.” “If he had made more friends here, he might . ”A. have stayed B. have stay C. stayed D. stay9. If I had a bike, I it to you yesterday.A. would have lentB. would lendC. would have lendD. could lend10. , John would not have failed.A. If he has listened to meB. Had he listened to meC. If he listened to meD. As he listened to me11. Had Alice been more hardworking, she .A. had not failedB. would not have failedC. would not failD. could not be failed12. “Steve made a reservation already”. “he change his mind, he can cancel it.”A. Should B. Would C. If D. So13. I wished it but it did.A. occurred not B. did not accurC. had not occurred D. would not occur14. I Professor Jones had taught me this equation.A. believe B. deeply think C. wish D. suppose15. The sun rises in the east and sets in the west, so it seems as if the sun around the earth.A. circles B. is circling C. be circling D. were circling16. The computer “teacher” was talking with his students as though it a human teacher.A. was B. were C. had been D. be17. Jane appears as though she the secret.A. knows B. knew C. has known D. had known18. If only she of Aunt Ruth!A. was not terribly so frightenedB. were not terribly so frightenedC. be not so terribly frightenedD. were not so terribly frightened19. “I think that the Smi