那些词可以引导主语从句?
问题描述：
那些词可以引导主语从句?
答
that
whether
who
whom
what
how
when
where
why
还习惯用it作形式主语
答
that, what, where, when, why, who, whether, how, whatever, wherever, whenever, whoever, and however.
答
that:连词,无词义,在句中不充当成分,但不能省略.who：“谁”,在句中做主语whom：“谁”,做宾语what：“什么”,可做主语、宾语、表语which：“哪一个”,做定语how：“多么,怎么（样）”,做方式状语或程度状语when：“...