问题补充:
to sunlight for too much time will do harm to one’s skin.
A. Being exposed
B. Exposed
C. Having exposed
D. After being exposed
答案:
(答案→)A. Being exposed
B. Exposed
C. Having exposed
D. After being exposed
解析:考查非谓语动词。句意:长时间日晒会对皮肤对不利。主语是being exposed to sunlight,谓语是will do harm to,宾语是skin,for too much time是定语。皮肤被晒伤,所以选择被动,所以是C或者D。但是D不能做主语,因为它前面是个介词,所以只能做状语。