选哪个,请给出原因.A.that spent B.what to be spent C.it had been D.which was spent

题目

选哪个,请给出原因.A.that spent B.what to be spent C.it had been D.which was spent
In Martin Luther King's time,the money spent in educating a black child was just one fourth of_______on each white child.
但是我们老师说过that前不加介词.为什么?

答案

A在马丁路德金的时代,花在教育一个黑人孩子身上的钱只是花在白人孩子身上的钱数的四分之一.先把这句话结构划分一下.主要结构：.the money ... was just one fourth of that...that在此替代的是the money 有两个过去...