Teachers appreciate when the students sincerely point out the mistakes in their

Teachers appreciate ________ when the students sincerely point out the mistakes in their teaching．

them

that

this

it

试题答案

答案：D

it作形式宾语，代替后面when引导的从句，而that和this都不能代替后面的句子。语意为：当学生们真心指出他们教学中的错误时，老师们非常感激。