3.The light in the room------before you leave.A.are turned B

问题描述:

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.
1个回答 分类:英语 2014-10-17

问题解答:

我来补答
B.must be turned off
你离开前必须关灯.
 
 
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