--How long are you staying ?
-- I don't know . ______.
A. It depends. B. That's OK. C. Never mind. D. It doesn't matter.
The Olympic Games are held _____.
A. for four years B. each four year
C. every four years D. every fourth year
This area experienced ____ heaviest rainfall in ____ month of May.
A. / ; a B. a; the C. the ; a D. the ;the
We offered these students a summer course ,aimed _____ improving their
spoken English.
A. to B. of C. at D. for
--I can't find John .Where did you meet him this morning?
-- It was in the hotel _____ he stayed.
A. why B. where C. which D. What
.Don't ____ when other people are talking.
A. cut through B. cut across C. cut into D.cut in
