A:I'll do my ____to help you with your English.B:That's very kind of you.A.good B.better C.best

问题描述:

A:I'll do my ____to help you with your English.B:That's very kind of you.A.good B.better C.best
为什么选C? 

do one's best / try one's best
尽某人最大的努力