They must have stayed at home last night ______?A.mustn"t theyB.didn"t theyC.haven"t theyD
正确答案
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They must have stayed at home last night,______?
A.mustn"t they
B.didn"t they
C.haven"t they
D.must they
请帮忙给出正确答案和分析,谢谢!
