问题

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
B:makes sure; will be turned off
C:is made sure; are turned off
D:will make sure; will be turned off
正确答案是:
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