16. I ___ writing the article by the time you get back.

　　A. shall finish

　　B. must have finished

　　C. have finished

　　D. shall have finished

　　【答案】：D。本句为将来完成时。表示在将来的某一时刻或将来的某一时刻之前已完成，这一动作可以继续下去。When you come again in July we shall have moved into a new house.七月份你们再来的时候，我们就搬进新房子里去了。I shall have done it by the end of this week.我要在周末做完它。本句的意思是“我要在你回来之前写完这篇文章”。

　　17. Mrs. White became a teacher in 1985. She _____ for twenty years by next summer.

　　A. will teach

　　B. would have taught

　　C. has been teaching

　　D. will have been teaching

　　【答案】D此题考查的是动词辨析。A 建议，但无suggest sb to do 这种用法;B 吸引;C 引诱，D劝说。根据题意应该是：Alice很相信你，只有你能劝说她放弃这种愚蠢的念头。故选D

　　18. In another year or so, you _____ all about it.

　　A. forget

　　B. would forget

　　C. have forgotten

　　D. will have forgotten

　　【答案】D大概一年以后，你就会完全忘记它了。将来完成时。

　　19. By this summer, Elizabeth ______ here for ten years.

　　A. will work

　　B. works

　　C. will have worked

　　D. has worked

　　【答案】C。到今年夏天为止，伊丽莎白就在这里工作十年了。标志词“By this summer”到将来的某个时间为止，所以用将来完成时。

　　20. You needn't hurry her. She ___ it by the time you are ready.

　　A. will have been finishing

　　B. would finish

　　C. will have finished

　　D. will be finishing

　　【答案】C。你没必要催她。你准备好了的时候，她就会做完了。标志词“by the time”。

　　21. I’m sorry I couldn’t get in touch with him before he left, I ___ him earlier.

　　A. had a telephone

　　B. have phoned

　　C. should have phoned

　　D. should be phoned

　　【答案】C。should(ought to)+have+过去分词：表示对过去动作的责备、批评。You should have gone over your lessons.你们应把功课复习好。You shouldn’t have watched TV last night.你们昨天晚上不应该看电视。

　　22. Don’t you think it is time you ___ smoking?

　　A. give up

　　B. gave up

　　C. would give up

　　D. should give up

　　【答案】B It is time sb did sth：该是做某事的时候了，固定用法，句中的动词使用虚拟语气，用一般过去时表示。

　　23. I would have joined him in a picnic, but I _____ his company.

　　A. will not like B. don’t like

　　C. had not liked D. might not like

　　【答案】B本题的题干是一个表示虚拟的句子，但是后面的句子表示真实语气的。因此正确答案为B。本句的意思是：“我本来想参加他的野餐的，但是我不喜欢他的伙伴们。”

　　24. I wish you ___ to me before you went and bought that car.

　　A. spoke

　　B. will speak

　　C. was going to speak

　　D. had spoken

　　【答案】D 句中before后面的动作时过去时态，表明已经发生了，故B错;因“我希望(I wish)”发生的动作应该发生在before从句中的动作之前，所以选过去完成时态，故D正确。“wish+宾语从句”表示与过去事实的虚拟：sb wish that … had done，表示“应该发生而实际没有发生的动作”。

　　25. ___the advice of his friends, he would not have suffered such a heavy loss in his business.

　　A. If he took

　　B. If he should take

　　C. Were he to take

　　D. Had he taken

　　【答案】D 此句测试虚拟语气的用法。此句为和过去的事实相反的虚拟句，if省略，句子倒装。因此D最符合题意。本句的意思是：“如果他听了朋友们的劝告,他的生意就不会这么损失惨重。”

　　26. It’s vital that enough money _____ collected to get the project started.

　　A. is

　　B. be

　　C must be

　　D. can be

　　【答案】B 此题考查虚拟语气的用法。形容词vital后面连接主语从句的时候要虚拟语气should+动词原形。因此B为正确答案。

　　27. I am too busy these days. I would rather all of you ___ next month for a dinner.

　　A. come B. would come

　　C. came D. have come

　　【答案】C。would rather +句子(过去时)(虚拟语气)：I’d rather you didn’t tell anyone what I said.你最好别告诉任何人我所说的话。I’d rather you came with me. 你还是和我一起来吧。

　　28. I believe he ___ an accident, otherwise he would have arrived on time.

　　A. would have had

　　B. could have had

　　C. should have had

　　D. must have had

　　【答案】D 主语+must+have+过去分词，表示对过去事实的推测。The road is wet. It must have rained last night.路是湿的，昨晚肯定下雨了。I didn’t hear the phone. I must have been asleep.我没有听见电话玲响，我肯定是睡着了。

　　29. It’s urgent that a meeting _____ before the final decision is made.

　　A. will be arranged

　　B. must be arranged

　　C. be arranged

　　D. would be arranged

　　【答案】C It is (was)+adj形容词/过去分词+that……结构中形容词后的主语从句用虚拟语气表示愿望、建议、请求、命令、可能、适当、迫切、重要等;should可省略。常用的形容词由natural, appropriate, advisable, preferable, better, necessary, important, imperative, urgent, essential, vital, probable, possible, compulsory, crucial, desirable等。

　　30. You have stayed at home for two days. It’s time you_____ for a walk.

　　A. go out

　　B. went out

　　C. will go out

　　D. would go out

　　【答案】B。虚拟语气。固定句型It’s time that+过去式。他说你在家呆了两天了，该是你出去散步了。