which what whose where that whom 等引导的从句怎么区别啊`

问题描述:

which what whose where that whom 等引导的从句怎么区别啊`

which有选择范围
what 引导是宾语/主语从句在主句从句中都占有成分
whose 对人称代词的引导
that基本都可以用.
whom是指代从句宾语