We are only___ glad to do anything we can ___ her.

问题描述:

We are only___ glad to do anything we can ___ her.
A. too, to help B. very, help C. too, helpD. very, helping
为什么选a而不选c

句子的核心是
We are only too glad to help her.
too..to结构
句中的to do anything we can中we can是后置定语,修饰anything.
与后面的help无关.