I won't believe it until I__it with my own eyes.A saw B have seen C had seen D will see 选哪个?为什么呢?

分类: 作业答案 • 2022-01-02 15:37:47

问题描述：

I won't believe it until I__it with my own eyes.
A saw B have seen C had seen D will see 选哪个?为什么呢?

答

b
前面是won't,所以必须用现在完成时.