题目内容：

Both way will work,so you can just try () method you want to.
whatever,whichever,no matter which选哪个为什么求详解

优质解答

whichever 因为both way 两种方法, 任何一个都行,故用whichever 而不用whatever
no matter which 引导让步状语从句, 而上题需要的是宾语从句