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30. –You haven’t got the textbook for my English class yet.

　 --I know, and we _____ to get it for the last five weeks.

A. will have been trying　 　　　　　　　　　　　 B. will be trying　

C. had tried　 　　　　　　　　　　　　　　　　　　　　 D. have been trying

29. _____ English?

　 A. How long are you studying　　 　　　　　　　 B. How long do you study

　 C. How long have you been studying　 　　　　 D. How long will you have studied

28. I won’t be able to watch the program because I _____ my homework at that time.

　 A. shall have done　 　　　 B. will do　　 　　　　　　　　　　 C. shall be done　　 　　 D. will be doing

27. I _____ the whole book by the day after tomorrow.

　 A. shall read　　 　　　 B. shall be reading　　 　 C. will read　　 　　　　　 D. shall have read

26. He _____ to meet us at the station but he didn’t see us.

　 A. did go　 　　　　　　 B. didn’t go　 　　　　　　 C. has gone　 　　　　　　 D. was going

25. The doctors could do nothing to save the patient and he _____.

　 A. died　　 　　　　　　　　　　 B. die　　 　　　　　　　　　　 C. was dying　　 　　　　　 D. was dead

24. We _____ to the Great Wall three times in 1999.

　 A. went　　 　　　　　　 B. has been　　 　　　　　　 C. was visited　　 　　　　 D. had visited

23. It won’t be long before such a thing _____ again.

　 A. happened　　 　　　 B. is happened　　 　　　　　　　 C. will happen　 　　　　　　　 D. happens

22. The key to my door _____. I have looked for it everywhere, but I still _____ it.

A. is missing; can’t find　　 　　　　　　　　　　　　 B. has lost; don’t find

C. has lost; haven’t found　 　　　　　　　　　　　　 D. has been gone; haven’t found

21. I don’t think Jim saw me, he _____ into space.

　 A. just stared　　 　　　 B. was just staring　　 　 C. has just stared　 　　　 D. had just stared