They must have finished the work, ?A.mustn’t theyB.haven’t theyC.hadn’t theyD.di
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They must have finished the work, ______?
A.mustn’t they
B.haven’t they
C.hadn’t they
D.didn’t they
试题答案
B

They must have finished the work, ______?
A.mustn’t they
B.haven’t they
C.hadn’t they
D.didn’t they
B