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    精英家教网 > 高中英语 > 题目详情

    Plastic bottles can be recycled but they need cleaning thoroughly, _______ they?

    A．needn't B． don't C．mustn't D．can't

    B

    解析试题分析:考查反义疑问句。But连接两个并列句，由此判断反问句是对后面的句中进行反问，need做情态动词时，后面用动词原形，由此判断句中need是实义动词，所以反义问句要用助动词do构成，正确答案是B。 句意：塑料瓶子能够被回收利用，但是他们得需要彻底的清洗，是吗？
    考点：考查反义疑问句。

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