问题描述： Thanks for _____me 选项A help B to help C helping 1个回答 分类：英语 2014-11-08 问题解答： 我来补答 C helping介词后的动词要用动词ing形式（to 和动词原形构成动词不定式,此时to不是介词）Thanks for doing sth.Thanks for sth.Thanks for helping me = Thanks for your help 展开全文阅读
