谁能帮我区分who whom whoever?

多找些类似的语法题做做,好好揣摩一下,就好了Who told you the story?（主语） Whom did you give the book to?（介词宾语） whom是who的宾格,在现代英语中一般只用于书面体,在口语中通常用who,但在介词后只能用whom。whoever 不管谁,是用在状语从句中 举个例子：Whoever broke the glass must be punished。Don't open the door,whoever he is。