I don't have a soccer ball ,but my brother Alan does 为什么不是Alan has.

问题描述:

I don't have a soccer ball ,but my brother Alan does 为什么不是Alan has.

I don't have a soccer ball ,but my brother Alan does 为什么不是Alan has.
为了避免重复,常常用【代动词do/does】来代替【实意动词】.