it is known to all that every minute _____use of t_______the lessons will benefit students a great A

题目

it is known to all that every minute _____use of t_______the lessons will benefit students a great A.when made,to study B.that made,to study C.that made,studying
为什么不能选b,every minute is used full use of,所以是定语从句啊

答案

你看清楚,哪儿有 is 这里不是定语从句,而是状语从句+省略句（省略了主语+be动词）原句的正常顺序是：it is known to all thatwhen ( it is ) made use of to study the lessons,every minute will benefit students ...