连接代词，
疑问代词在引起
从句时，都称为连接代词，包括who,whom,
whose, what, which, whoever, whomever, whichever,
whatever，一共九个，即除了whose后不能加“-ever”后缀，其余都行。
It is clear enough what she meant. 她是什么意思很清楚。
I don’t care what they think. 他们怎么想我不管。
Ask her which she wants. 问她要哪一个。
Wherever you go,
whatever you do, I will be right here waiting for you.无论你去哪里，无论你
做了什么，我都会在这里等你。
Tell him what to do. 告诉他怎样做。
Lucy can’t decide which to choose. 露西不能决定选哪个好。
They exchanged views on the question of whom to elect. 他们就该选谁的问题交换了意见。