when you leave the room,make sure_____the door.a)of locking b)you lock c)foryou to lock d)to lock选哪个?为什么?

分类: 作业答案 • 2021-12-19 16:24:16

问题描述：

when you leave the room,make sure_____the door.
a)of locking b)you lock c)foryou to lock d)to lock
选哪个?为什么?

答

D make sure to do sth确定做某事