问题: 反意疑问句的问题
The rescue team must have searched for the missing visitors two days ago, _____?
A. mustn’t they B. haven’t they C. didn’t they D. hadn’t they
解答:
该题我认为选择C,有以下关于must用于“猜测”意思的例句：
陈述部分有must 的疑问句，疑问部分根据实际情况而定。
He must be a doctor, isn”t he?
You must have studied English for three years, haven”t you? / didn”t you?
He must have finished it yesterday, didn”t he?
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