They ___(run)out of their water and food,which worried them a lot.这里为什么用had run 而不用was running?

分类: 作业答案 • 2022-01-02 14:24:08

问题描述：

They ___(run)out of their water and food,which worried them a lot.
这里为什么用had run 而不用was running?

答