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    精英家教网 > 高中英语 > 题目详情

    【题目】It's quite warm here; we ________ turn the heating on yet.

    A．needn’t B．mustn't

    C．couldn’t D．wouldn't

    【答案】A

    【解析】句意：这里相当暖和，我们不需要开暖气。needn't 不需要;不必;强调客观条件，常做must问句的回答；mustn't不许，不准，不允许 ;命令的口气，语气最强烈”禁止”；couldn't表示不可以，是can的过去式，加not，语气比较委婉，而wouldn't有表示不会的意思，是will的过去式，表示对过去情况的一种可能推测。

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