In order to keep healthy, you’d better _______.
A. not to smoke B. not smoke
C. don’t smoke D. smoking
I don’t know _______.
A. where can we buy the tickets
B. how much it costs to fly to Shanghai
C. who is he waiting for
D. why was he late for school this morning
— Is the man over there Mr Black?
— It _______ him. He has gone to England.
A. must be B. can’t be
C. may be D. mustn’t be
They _______to that supermarket many times since they moved here.
A. have been B. have gone
C. will go D. went
Tom likes cars. He enjoys _______ model cars of all kinds.
A. collects B. collected
C. to collect D. collecting
— Mike, how are you feeling today?
—Much _______. I think I can go to school tomorrow.
A. good B. better
C. well D. best