例1 I didn′t go to the party，but I do wish I _____ there.
A.were B.would be C.had been D.will be
例2 Peter wishes that he ____ law instead of literature when he was in college.
A.could study B.studied C.had studied D.would study
If only后边的语句假定是对如今或将来情况的虚拟，用曩昔时did；假定是对曩昔情况的虚拟，用曩昔结束时had done.要留心与if差异，if只标明假定，意为“假定”，用真实口气。而if only标明不可以能完成的情况，用虚拟口气。
例： If only the alarm clock had rung.其时闹钟响就好了。（对曩昔虚拟）
If only I were rich.要是我赋有就好了。（对如今虚拟）
例1 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
例2 I′d ____ you
didn′touch that，if you don′t mind. A.rather B.better C.happier D.further
（4）it is time （that），it is high time（that）…句型中，谓语动词用曩昔时，标明早该做而未做的事，意思是“该……了、早该……了”。
例1 Let′s finish our homework in a faw seconds；it′s time we ____ _ .
A.played football B.will play football C.play football D.are playing football
例2 Don′t you think it is time you _ _ smoking？
A.give up B.gave up C.would give up D.should give up
（5）以as if，as though引导的从句。
在as if，as though引导的从句中，假定谈论的是不可以能或不真实的情况时，他们所引导的状语从句要用虚拟口气，动词方法和wish后边的从句动词方法改变相同。
例：He talks as he ___ everything in the world.
A.konws B.knew C.had known D.would have known
例1 I don′t think it advisable that Tom _____ to she job since he has no experience.
A.be assigned B.is assigned C.will be assigned D.has been assigned
例2 His mother insisted that he _____ the coat when going out.
A.put on B.puts on C.to put D.putting on
例3 The doctor advised that Mr.Malan ____ an operation right away so as to save his life.
A.had B.would have C.have D.was going to have
（2）It is necessary/important/essential/vital/urgent/surprising/amazing that…引导的主语从句中，从句的谓语动词要用should + 原形动词，should也可以省掉。此类描述词的特征是标明重要性或吃惊。
例1 It is vital that enough money _____ collected to get the project started.
A.is B.be C.must be D.can be
例2 It′s urgent that a meeting _____ befor the final decision is made.
A.will be arranged B.must be arranged C.be arranged D.would be arranged
（3）以in case，lest，for fear that 引导的状语从句，标明“以防、避免”其方法为should+动词原形。
He took his raincoat with him in case it should rain. 他把雨衣带在身上以防下雨。
1.You didn′t let me drive. If we ____ in turn，you ____ so tired.
A.drove ；did′t B.drove wouldn′t get C.were driving；wouldn′t get D.had driven；wouldn′t have got
2. ____ ，we could not have finished the work on time.
A.If they do not help us B.Was it not for their help C.Should they other to help us D.But for their help
3. ____ today，he would get there by Friday.
A.Was he leaving B.If he in leaving C.Were he to leave D.If he leaves
4.If only I ____ how to operate a computer as you do！
A.had known B.would know C.should know D.knew
5. When a pencil is parly in a glass of water， it looks as if it ____ .
A.breaks B.has broken C.were broken D.had been broken
6. The chairman requested that ____ .
A.the members studied the problem more B.the problems were more carefully studied
C.the problems could be studied with more care D.the members study the problem more carefully
7. If I ____ you，I ____ more attention to English idioms and phrases.
A.was；shall pay B.am；will play C.would be；would pay D.were；would pay
8. We cannot imagine what our world ____ like without electric power.
A.is B.will be C.would be D.were
9.There was a half smile on his face which suggested that be ____ happy to have given his life for his country.
A.was B.should be C.would be D.were
10. We all agreed to her suggestion that we ____ to the Great Wall for sightseeing.
A.will go B.go C.shall go D.should have gone
11. The young man insisted that he ____ nothing wrong and ____ free.
A.did；set B.had done；should be set C.do；be set D.had done；must be set
12. I lost your address，otherwise I ____ you long before.
A.had visited B.have visited C.would have sisited 1D.should visit
13. ____ the rain we would have had a nice holiday.
A.But that B.But for C.Despite D.In spite of
14. ____ no gravity ，there would be no air around the earth.
A.Were there B.There were C.Was there D.There be
15. It′s getting rather late.It′time we ____ .
A.are going B.went C.go D.must go
16. They keep telling us that it is vital that we ____ there on time.
A.are B.be C.must be D.would be
参阅答案： DDCDC； DDCAB； BCBAB； B