With piles of work on hand, she ____ to the cinema last night.
A. mustn't go
B. wouldn't go
C. oughtn't to go
D. shouldn't have gone
查看答案
My classmate went to the doctor's the day before yesterday. He had to wait for an hour before the doctor ____ see him.
A. can
B. could
C. may
D. might
According to the school regulations, you ____ make a noise in the test room.
A. mustn't
B. may not
C. needn't
D. don't have to
Mike ____ jump higher when he was young.
A. should
B. would
C. could
D. might
He was once a fire fighter in the army, so he ____ use the fire extinguisher skillfully when the fire broke out.
A. was able to
B. could
C. might
D. succeeded to