I think this is the very work that we must finish her.A. to helpB. helpC. helpingD. helpe

问题补充：

I think this is the very work that we must finish her.

A. to help

B. help

C. helping

D. helped

答案：

(答案→)A. to help

B. help

C. helping

D. helped

解析：句中空格处填的动词help 并不是 finish 的宾语，正确的句子分析是：that I must finish 是修饰名词 the very work 的定语从句，finish 的宾语是引导该定语从句的关系代词 that，其后的不定式 to help her 是目的状语。