My uncle is used to for the children in poor areas.
A. raise money
B. raised money
C. raising money
D. raises money
网友回答
A. raise money
B. raised money
(答案→)C. raising money
D. raises money
解析：句意：我的叔叔习惯于为贫困地区的孩子们筹集资金。短语be used to sth习惯于某事;to是介词，后面接名词或者动名词作宾语，结合语境可知选C。