OG第一题有一处不明

mortify

1、 The Wallerstein study indicates that even after a decade young men and women still experience some of the effects of a divorce occurring when a child.

(A) occurring when a child

(B) occurring when children

(C) that occurred when a child

(D) that occurred when they were children（D）

(E) that has occurred as each was a child

OG给的答案里说E选项错误地将when换成as（E里面其它的错误明白了，但就这个不理解）。

我不太明白when和as到底有什么区别，这里为何不能用as代替？

[此贴子已经被作者于2005-11-14 21:19:38编辑过]

mortify

附上OG解释：

Choice E includes an incorrect verb tense (has occurred) and wrongly replaces when with as. Also, each was does not properly refer to men and women.

zhaozilong

I suffered a lot of stomach pain when I was 11.

Does it make sense if you replace when with as?

mortify

有点明白你的意思了，不过还是没全搞懂