题目内容：

This is the very work that I must finish ____ her.
填to help还是helping,为什么.答对加分
答案为to help

优质解答

to help her表示目的,为了帮助她
这句句子其实是
I must finish the very work to help her
This is the very work ( that I must finish to help her,定语从句,that代替work).