27.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

26. ---- If he_____ 　, he ______ that food.　　　　 ---- Luckily he was sent to the hospital immediately.

　　 A. was warned; 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

25. If only I _________ to the lecture!

　　 A. listen　　　　　　　　　　　　 B. will listen　　　　　 　　 C. am listening　　　　　　　　　　 D. had listened

24. I ' d rather that you ________ home.

　　 A. went　　　　　　　　　　　　 B. have gone　　　　　　　　 C. will go　　　　　　　　　　 D. had gone

23. It is high time we ________ home.

　　 A. will go　　　　　　 B. would go　　　　　　　　 C. have gone　　　　　　　　 D. went

22. That is a good book. You ________ it yesterday.

　　 A. could buy　　　　　 B. should buy　　　　　　 　 C. should have bought　 　　　　 D. bought

21. I am sorry that he ________ in such poor health.

　　 A. are　　　　　　　　　 B. shall be　　　　　　　　 　　 C. were　　　　　　　　 D. should be

20. They got up early in order that they ________ they first train.

　　 A. caught　　　　　　　 B. will catch　　　　　　　　　 C. might catch　　　　　 D. shall catch

19. Read it aloud so that I ________ you clearly.

　　 A. may hear　　　　　　　　　 B. will hear　　　　　　　　　 C. hear　　　　　　　　　　　　 D. have heard

18. He acted as if he ________ everything in the world.

　　 A. knew　　　　　　 B. knows　　　　 　　 C. has known　　　　 D. won't know