They must have finished the work, ?A. mustn’t theyB. haven’t theyC. hadn’t theyD. didn’t t

发布时间：2020-08-16 12:23:46


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

网友回答

A. mustn’t they
(答案→)B. haven’t they
C. hadn’t they
D. didn’t they
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