You ______ be tired: you have only just begun to work.
You ______ be tired: you have only just begun to work.
A、can not
B、should not
C、mustn't
D、may not
【正确答案】:A
【题目解析】:"肯定不" 不是想当然的是"mustn't",而是"can't"。这个是需要记忆的。
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