what引导主语从句时在从句中充当句子成分,如：主语、宾语、表语.而that则不然,例如：what you said yesterday is right.That she is still alive is a consolation.
what与that引导名词性从句的练习
what引导主语从句时在从句中充当句子成分,如：主语、宾语、表语.而that则不然,例如：what you said yesterday is right.That she is still alive is a consolation.