I'm sorry i am going to _____ to get to your house.为什么选带be的啊

问题描述:

I'm sorry i am going to _____ to get to your house.为什么选带be的啊
A.be a little late B.a little late

A.be a little late
必须有be,否则没动词啦 be going to do sth.
本句中 am going to be那前面的 am going to 中的be不是动词吗am 是 be going to 中的be,不是后面的be那不算是句子里的动词吗?不算是谓语动词吗be going to =will 不算完整的动词谓语