which在定语从句中的用法
老师说了,which和that在定语从句中既可指人,又可指物,既可作宾格,又可作主格,this is the man which/that/whom I told you about.这句话对吗?these are the books which/that I bought yesterday对吗?the man who/that/which is in a hat对吗?不要从百度上抄,也不要告诉我什么先行词,