They must have stayed at hotel last night, ______?A、mustn’t theyB、haven’t they

游客2023-11-16  26

问题 They must have stayed at hotel last night, ______?

选项 A、mustn’t they
B、haven’t they
C、didn’t they
D、hadn’t they

答案 C

解析 反意疑问句题。must have stayed表示对过去的猜测,因此反意疑问句部分,用助动词did。因此答案为C。
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