21. Almost everyone _______ for home by the time we arrived.

A. leave           B. left              C. leaves          D. had left

22. By the age of 25, he ______ two famous novels.

A. wrote          B. writes          C. has written  D. had written

23. When her husband was in the army, Mary ______ to him twice a week.

A. was reading                        B. wrote          C. was written D. had written

24. I couldn’t cut the grass because the lawn mower ______ a few days previously.

A. broke down                                                B. has been broken     

C. had broken down               D. breaks down

25. I have never played badminton before. This is the first time I _____ to play.

A. try               B. tried            C. have tried   D. am trying

26. Since _______, I have heard nothing from him.

A. he had left B. he left         C. he has left   D. he was left

27. After I _______ lunch, I looked for my bag.

A. had             B. had had      C. have has      D. have had

28. By the end of next year, George _______ English for two years.

A. will have learned                B. will learn    

C. has learned                                                 D. would learn

29. The man got out of the car, ________ round to the back and opened the book.

A. walking      B. walked        C. walks          D. walk

30. Henry _______ into the restaurant when the writer was having dinner.

A. was going   B. went           C. has gone     D. did go