The girl devoted all her time she had others.A. to helpB. helpingC. to helpingD. helped

问题补充：

The girl devoted all her time she had others.

A. to help

B. helping

C. to helping

D. helped

答案：

A. to help

B. helping

(答案→)C. to helping

D. helped

解析：句意：这个女孩把她所有的时间都用于帮助别人。devote 指 “决心将全部身心、活动、精力等献出”,devote to把...献给; devote oneself to 致力于, 献身于; 专心于，这里的to是介词，所以选C。