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单选题
We ______ use mobile phones when the plane takes off.
A
may not
B
shouldn’t
C
needn’t
D
mustn’t
参考答案
参考解析
解析：
句意：飞机起飞的时候我们不准使用手机。本题考查情态动词的用法。mustn’t禁止。may not可能不。shouldn’t 不应该。needn’t不需要。这里表示强制性的规定，故D选项符合题意，故选D。
句意：飞机起飞的时候我们不准使用手机。本题考查情态动词的用法。mustn’t禁止。may not可能不。shouldn’t 不应该。needn’t不需要。这里表示强制性的规定，故D选项符合题意，故选D。
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