I don’t speak any French. I wish I _______ harder when I was at school. 
#86673
A
had worked
B
worked
C
would work
D
work
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What a pity! Considering his ability and experience,he___ better.
#87930
A
need have done
B
must have done
C
can have done
D
might have done
I’d rather that you ______ the operation right away.
#88337
A
perform
B
should perform
C
will perform
D
performed
— We did not see him at the lecture yesterday. — You _______ him, since I went to an international conference with him.
#87885
A
mustn’t have seen
B
can’t have seen
C
couldn’t see
D
needn’t have seen