I will keep you_of how our business is going on.A.inform B.informing C.to inform D.informed 答案是选D,为什么呢?

分类: 作业答案 • 2022-01-02 14:24:20

问题描述：

I will keep you_of how our business is going on.
A.inform B.informing C.to inform D.informed 答案是选D,为什么呢?

答