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    精英家教网 > 高中英语 > 题目详情

    If ____ in, viruses can result in illness or even death.

    A．breathe B．breathing
    C．breathed D．to breathe

    C

    解析试题分析:句意：如果被吸进体内，病毒能够导致疾病甚至死亡。此处是“连词+非谓语”结构做状语，句子主语viruses和breathe之间是动宾关系，故用过去分词表示被动，选C。
    考点：考查非谓语动词。

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