-Do you know any idea what Paul does all day?-As i know,he spends at least as much time playing as he_.A.writes B.does writing C.is writing D.does write为什么是does writing
问题描述：
-Do you know any idea what Paul does all day?
-As i know,he spends at least as much time playing as he_.
A.writes B.does writing C.is writing D.does write
为什么是does writing
答
writing 是名词形式，指的是写作，或学习
用does是第三人称单数形式
答
does 语气助词，加强语气
答
writing 是名词形式,指的是写作,或学习
用does是第三人称单数形式
does writing 指的是写作业
答
因为用了as much as短语
所以前后相对应的部分要平行。
也就是he spends writing和he spends playing平行
都是spends，前面写了，后面重复不好也没有必要，因此用does代替spends，三单形式。