to sunlight for too much time will do harm to ones skin.A. ExposedB. Having exposedC. Be

发布时间：2020-08-17 15:12:24

     to sunlight for too much time will do harm to one's skin. 
A. Exposed
B. Having exposed
C. Being exposed
D. After being exposed

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A. Exposed
B. Having exposed
C. Being exposed
D. After being exposed
解析：
在非谓语动词中，用动名词或不定式来作主语，而分词和介词短语不能作主语，因此A、D被排除。在这个句子中，will do是谓语，缺少主语，要用动名词作主语。expose与one's skin是动宾关系，所以要用动名词的被动式being exposed。译文：在阳光下晒太长时间对人的皮肤有坏处。
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