26. Don't get off the bus until it ______.

A. stop 　　　　　　　　 B. will stop 　　　　　 C. stopped 　　　　　 D. has stopped

25. "Have you seen the art exhibition?" "No, _____ there. "

A. it was not being held　　　　 　　　　 B. they didn't hold

C. it had not held　　　　　　　 　　 D. they were holding it

24. "How long haven't we seen each other? ""Well, it _____ nearly two years since we ______ last. "

A. is/have met 　　　 B. was/had met 　　 C. is/met 　　　　　　　 D. has been/had met

23. They ______ the Summer Palace three times.

A. have gone to　　　 B. have been to　　　 C. have been in　　　 D. have gone into

22._____six years since I began studying English.

A. They have been 　　　 B. it is 　　　　　 C. It was 　　　　　　　 D. There are

21. We won't go unless you ______ soon.

A. had come 　　　　 B. came 　　　　　　　 C. will come 　　　　 D. come

20. It was said that his father ______.

A. has died 　　　　　 B. died.　 　　　　　　 C. has been dead 　 D. had died

19. Every time I _____ there, I will buy him something nice.

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

18. I _____ here since I moved here.

A. will work 　　　　 B. worked 　　　　　　 C. work 　　　　　　　 D. have been working

17. I will ______ here till you give me some money.

A. leave 　　　　　　　 B. not leave 　　　　 C. come 　　　　　　　 D. return