I bet Mrs.Black will come to help us with the celebration if she is too busy 为什么要填is?而不是isn't呢?

分类: 作业答案 • 2023-01-16 20:44:53

问题描述：

I bet Mrs.Black will come to help us with the celebration if she is too busy 为什么要填is?而不是isn't呢?
这是一个中考题，is……

答

这里的If