定语从句中who和whom的选用（即什么时候应该用who?）
问题描述：
定语从句中who和whom的选用（即什么时候应该用who?）
答
who 做从句中的主语, whom 做从句的宾语
He is the teacher who has been in US for several years
He is the teacher whom the studentstalked about