as it did in the case of Alfred who worked as a dustman.

这是新概念3里的经典句型啊~ 前面要用一句概述 as it did是用来衔接例子的,不能去掉~
比如：
The Internet can benefit peole in may ways, as it did in the case of lilywishing who found the solution to her problem through the Internet.
当然具体形式还要根据人称变化 比如 as they/he/she did...
新概念3有很多好句型呢~ 值得好好学一下~