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[单选题]
A.mustn' tB.can' tC.shouldn' tD.may not
A.mustn' t
B.can' t
C.shouldn' t
D.may not
查看答案
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A.mustn' t
B.can' t
C.shouldn' t
D.may not
A.mustn’t
B.can’t
C.may
D.needn’t
Your mother must be at home, ______she?
A.mustn't
B.doesn't
C.isn't
D.needn't
"Must we hand in our exercise-books now? ""No, you ______. "
A.mustn't
B.don't
C.needn't
D.can't
The volunteers must have broadened the road yesterday, _______?
A.mustn’t they
B.haven’t they
C.didn’t they
D.weren’t they