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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