when I was a young boy,I often play jokes on others.这句话里的when 能换成as

题目

when I was a young boy,I often play jokes on others.这句话里的when 能换成as

答案

不能,这里的when表示的是一段时间,“当……的时候”而as一般表示 “一边,一边”,主句和从句两个动作同时发生