When the teacher came in,he found all the students_____(read).答案were reading ,为什么不能用reading

分类: 作业答案 • 2021-12-23 14:11:26

问题描述：

When the teacher came in,he found all the students_____(read).
答案were reading ,为什么不能用reading

答

这是一个典型的过去进行时时态.当然要用were reading