英语有疑问He is the students to whom we want to talk.(为什么要用to who

he is the student()we want to talk 为什么是to whom而不是whom He is the student _ we want to talk. he is a man who i want to talk with Do you know the girl _____?A.whom he often talk to B.to who Here is the man ___you want to see.为什么空中能用whom和who,不是只能用whom 请问有没有 "to whom he want to talk” 这种用法? Whom do you want to talk to? he is difficult from ___ he used to be.用what还是whom,who为什么 he is the man (whom/that/who) you just talked to为什么那三个可以用,还可 请问”You are the last person whom I want to talk with ”这个句子有语法 Is he the man who wants to see you?怎样确认里面应用who而不是用 whom He is not the man ------he used to be.A whom B who C that D