11. They ______ table tennis when their father comes back home.

A. will play     B. will be playing                    C. play             D. would play

12. By Christmas, I _______ for Mr. Smith for six years.

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

13. I _______ in the room right now.

A. am being     B. was being   C. have been being      D. am

14. I ______ to New York three times this year.

A. have been   B. was             C. were                        D. had been

15. I’ll come and see you before I _______ for the States.

      A. leave           B. will leave    C. have left                 D. shall leave

16. The little girl asked what _______ to her friend.

      A. has happened                     B. happened   

      C. had happened                     D. would have been happened

17. John ______ a book when I saw him.

      A. is reading    B. read            C. was reading                 D. reading

18. He said he _______ return later.

      A. will             B. would         C. can              D. would be

19. Jack ________ the door.

      A. has just opened                  B. open           

      C. have opened                       D. opening

20. I have been waiting for you ______ .

A. since early morning            B. since 9 a.m    

C. for two hours                      D. All are correct