Every morning,l see the street cleaners ____the street.A.to clean B.clean C.clean D.is cleaning貌似是C.可为什么是 B.

分类: 作业答案 • 2021-12-18 17:09:56

问题描述：

Every morning,l see the street cleaners ____the street.A.to clean B.clean C.clean D.is cleaning
貌似是C.可为什么是 B.

答