They must have finished the work by the end of last month, ?A. mustn’t theyB. haven’t they

发布时间：2020-08-16 12:23:43


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

网友回答

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