31. A. can be              B. can                          C. could                       D. could be

30. A. you                 B. your                         C. yours                        D. yourself

29. A. what               B. when                       C. why                        D. which 

28. A. have failed       B. had failed                  C. failed                        D. fail

27. A. to say               B. say                           C. saying                       D. said

26. A. after              B. before                       C. in                           D. in front of

24. ? Have you found Jim?

? No. Mrs. White says he is out, but no one knows ________ .

A. where he has been       B. where he has gone

C. where he goes          D. where has he gone

23. ? I know Mr. Blue is very angry with me. What does he say?

   ? He says you _______ away if you are late again.

    A. will be sent   B. have been sent   C. Are sending   D. are going to send

22. ? Why are you so happy?

   ? I ______ my old neighbour yesterday, and we _____ each other for fifteen years.

A. saw; didn’t seen              B. saw; hadn’t seen

C. had seen; haven’t seen         D. saw; haven’t seen