He is the best student in the class__always gets the teacher's praise.A.who B.that,选哪个,为什么

He is the best student in the class__always gets the teacher's praise.A.who B.that,选哪个,为什么
He is the best student in the class__always gets the teacher's praise.A.who B.that,选哪个,为什么

He is the best student in the class__always gets the teacher's praise.A.who B.that,选哪个,为什么
A
always gets the teacher's praise做定语修饰He,所以用who代替he,如果前面是It就用that

B that 引导的定语从句 先行词有最高级the best 修饰时，定语从句引导词用that

选B,因为THAT修饰BEST

在定语从句中有一种情况必须用that,那就是先行词被最高级修饰,很显然the best是最高级,所以毫无疑问选that