A-A+
The students must hand in their essays in a we
问题详情
The students must hand in their essays in a week, ______？ No, they ______.
A．needn"t they... mustn"t
B．mustn"t they... mustn"t
C．mustn"t they... needn"t
D．shouldn"t they... should请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：C
解析：考查情态动词的用法。陈述句中情态动词must表示“必须”时，附加疑问部分用mustn't表示“禁止，不可以”；但表示“不必要”时，则用needn't。由此可见，C选项为正确答案。
