宾语从句中，引导词能不能在从句中作主语

Question

如题所述

Answer 1

可以，关系代词做引导词时就可以。
Tell me who hurt him.
告诉我谁伤了他。
Companion is what can best comfort the old.
陪伴就是给老人们最好的安慰。

Answer 2

宾语从句引导词有四种：1。纯引导词whether,if,that
2.名词性引导词what,which,who,whom
3.形容词性引导词whose,which,what
4.副词性引导词where,when,why,how
其中名词性引导词who,what,which可以做从句主语。
I
don't
know
what
made
you
so
angry.
He
asked
me
who
would
go
there
the
next
day.
There
are
two
books
here.Tell
me
which
is
the
better
.