一、不可以,定语从句中的关系词分代词和副词。如关系代词有which, who, whom, that等,关系副词有where, when等,还有表示所属关系的有whose。
二、what常用于引导名词性从句,如:
1.主语从句: what he said made people sad.
2.表语从句:the thing he wanted to get was what his dad had promised him.
3.宾语从句:he just does what he wants to do.
求采纳~求采纳~
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