请教一道关于非谓语的选择Colleen Bowser has had many sleepless nights,___
请教一道关于非谓语的选择
Colleen Bowser has had many sleepless nights,___about the safety of her daughter,who is living alone in another city.
A.worrying B.to worry C.being worried D.having worried
但词组不是be worried about么?
为什么不选C呢?