My sister met him at the cinema yesterday afternoon, so he       your lecture.
#63160
A
couldn’t have attended
B
needn’t have attended
C
mustn’t have attended
D
shouldn’t have attended
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—Does your uncle still smoke?—He ____________given it up. It’s two years ever since he ____________.
#63200
A
can’t have; smoked
B
may have; smoked
C
should have; has smoked
D
should have; didn’t smoke
Mary ______ my letter; otherwise she would have replied before now. 
#63420
A
has received
B
ought to have received
C
couldn’t have received
D
shouldn’t have received