根据汉语提示完成句子：They---（study）the map of the country before they left.

分类: 作业答案 • 2023-01-17 22:53:22

问题描述：

根据汉语提示完成句子：They---（study）the map of the country before they left.
我认为可能是had studied或studied,

答

had studied
study这一动作在left之前发生,所以用过去完成时.