Though she was young she her most time the children in remote areas.A. devotes；to teachB.

问题补充：

Though she was young，she her most time the children in remote areas.

A. devotes；to teach

B. devoted；to teach

C. devoted；to teaching

D. is devoted；to teaching

答案：

A. devotes；to teach

B. devoted；to teach

(答案→)C. devoted；to teaching

D. is devoted；to teaching

解析：考察devote的句型，devote的用法为，devote time to doing sth ,奉献时间干某事，因为she was young,所以主句的谓语动词要用过去时，即排除AD..因为to是介词，所以排除B，选择C