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外语
The students must hand in their essays in a week, ______? No, they ______.
The students must hand in their essays in a week, ______? No, they ______.
admin
2013-11-10
45
问题
The students must hand in their essays in a week, ______? No, they ______.
选项
A、needn’t they... mustn’t
B、mustn’t they... mustn’t
C、mustn’t they... needn’t
D、shouldn’t they... should
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。
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专业英语四级
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