How did you doing spend your holiday?你假期怎么过的?

问题描述:

How did you doing spend your holiday?你假期怎么过的?
我以为这句话应该是 How did you spend your holiday?但是为什么要加个doing
为什么要用强调啊?强调又是如何的用法呢?

表示强调问题和spend的内容