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Please tell Tom not to leave the classro...

Please tell Tom not to leave the classroom unless he ______ that all the lights ______.

A. makes sure; are turned off

B. makes sure; will be turned off

C. is made sure; are turned off

D. will make sure; will be turned off

 

A 【解析】 试题分析:句意:请告诉Tom离开教室前确保所有的灯都被关掉。第一空he和make sure是主动关系,第二空all lights和turn off之间是被动关系,故用被动语态。故选A。 考点:考查动词的时态和语态。
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