Question

【题目】My grandfather devoted all his time ______ poor children.

A. to helpB. helping C. helpedD. to helping

Answer 1

【答案】D

【解析】

试题分析：句意：我爷爷把所有的时间都花在帮助贫困的孩子身上。devote...to（介词）...把……奉献（给）。所以选D。