Sir, you ______ be sitting in this waiting room. It is for women and children only.
#90087
A
oughtn’t to
B
can’t
C
won’t
D
needn’t
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 Look! That fellow is too sleepy to work. He ______ up reading until midnight.
#88455
A
mustn’t stay
B
mustn’t have stayed
C
ought not to stay
D
should not have stayed
I didn’t know his address yesterday, otherwise I __________ him a visit.
#87350
A
would pay
B
would have paid
C
paid
D
had paid
 It is required in our school that lights in students’ rooms ______ off by 11o’clock.
#87254
A
be switched
B
would switch
C
should switch
D
must be switched