who laugh at her和 who laughs at her

题目

who laugh at her和 who laughs at her
pay no attention to the students who laugh at her.
who laugh at her 可以用 who laughs at
我记得 who says 好像就是加s的

答案

亲,这里who引导的是一个定语从句,谓语动词laugh修饰的是student.所以谓语是否加s用取决于前面student的反复数,要保持一致.