【题目】_______ to sunlight for too much time will do harm to your skin.
A. Exposed B. Having exposed
C. Being exposed D. After being exposed
在线课程【答案】C
【解析】题干中will do harm是谓语部分，主语部分缺失；expose与one's skin是动宾关系，要用动名词的被动式being exposed。句意：长时间暴露在阳光下对你的皮肤是有害的。因此选C