When he was at school. he ____ early and take a walk before breakfast .
A. would rise
B. should rise
C. shall rise
D. used to rising
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I _____ the operation unless it is absolutely necessary.
A. rather would not have
B. would rather not have
C. would rather
D. would not rather had
I would go to visit them but l _____ think they are anxious to see me .
A. haven't
B. didn't
C. wouldn't
D. don't
Since it is already midnight. we_______.
A. had better left
B. ought to have left
C. should take leave
D. might as well leave
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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