英语选择题一道说理由-Do you have any idea what Paul does all day?-As I

英语选择题一道说理由
-Do you have 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

As I know,he spends at least as much time playing as he____.
我们先来还原一下这个句子
As I know,he spends playing at least as much time as he____.
请注意AS...AS 引导的是比较状语从句,好,现在我继续还原这个句子你一下就看明白了,尤其后半句
As I know,he spends playing at least as much time as he____.(spends writting)
请注意为什么SPENDS 改成了DOES,是为了避免重复,后面的句子与前的本英一模一样,看明白了吗?
我要加分的呀!一楼选对了,但没有解释清楚哟!