（）to sunlight for too much time will do harm to one's skin.

（）to sunlight for too much time will do harm to one's skin.


A、

Exposed


B、

Being exposed


C、

Having exposed


D、

After being exposed


【正确答案】：B
【题目解析】：

分析句子结构可知此处缺主语，应用动名词。皮肤是被暴露在阳光之中的，所以应用动名词的被动式being done。


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