3.The light in the room------before you leave.A.are turned B.must be turned off如果知道答案,请说明理由.

来源:学生作业帮助网 编辑:作业帮 时间:2024/06/09 19:21:02

3.The light in the room------before you leave.A.are turned B.must be turned off
如果知道答案,请说明理由.

B.must be turned off
你离开前必须关灯.