An ambulance was waiting in the street. Somebody _____ hurt or killed.
A. should have been
B. must have been
C. should have not been
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______to you like that?
A. How dared he spoke
B. How dares he speak
C. How dare he speak
D. How dares he to speak
I would have come sooner. but l ______ that you were waiting.
A. don't know
B. hasn't know
C. didn't know
D. haven't known
You _______that if you don't want to.
A. don't need do
B. needn't do
C. need to have done
D. don't need to
You _____her in her office last Friday; she's been out of town for two weeks.
A. needn't have seen
B. might have seen
C. can't have seen
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