---_____ are the Olympic Games held?
---Every four years..
A.How often B. How many years
C. How soon D. How long
-Your dress is very beautiful, Mary.
-- ____.
A.Not at all B. Just so-so.
C. No, it isn’t. D. Thank you
--Will you please tell John to come to my office?
-- _____.
A.Yes, I do B. I’ll be glad
C. Thank you D. I’ll be glad to
There a house standing on the top of the mountain.
A. used to be B. is used to be
C. used to have D. is used to have
I’m afraid I’ll spend _____ two hours _______on the problem.
A.other; working B.more; to work
C. another; working D. else; to work
The flight to Guangzhou had to be________because of the heavy snow.
A.put up B.put out C.put off D.put down