We must be careful_____(cross) the road.

分类: 作业答案 • 2021-12-20 03:25:22

问题描述：

答

We must be careful_to cross____(cross) the road.
be careful to do sth 小心去做某事

答

crossing
过马路是我们必须小心。

答

crossing

答

to cross
望采纳，谢谢

答

crossing 状语