who,whom在从句中分别作主语和宾语,指人,其中 who可以替换whom,但是介词后面一定要用whom,whom是who的宾格形式,用作疑问代词 .
例I want to know whom/who you are waiting for?
I want to know for whom you are waiting?
Mrs Read is the person to whom you should write.
who,whom在从句中分别作主语和宾语,指人,其中 who可以替换whom,但是介词后面一定要用whom,whom是who的宾格形式,用作疑问代词 .
例I want to know whom/who you are waiting for?
I want to know for whom you are waiting?
Mrs Read is the person to whom you should write.