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
网友回答
(答案→)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
解析：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。