He (is) (going) buy (a) new book找出错误改正

问题描述:

He (is) (going) buy (a) new book找出错误改正

going to buy

he is going to buy a new book
go 和 buy都是动词.不可以直接接在一起·要有个·to
be going to do 表示正在进行的动作