Please that you have closed all the windows and turned off the lights before you leave th

问题补充：

Please that you have closed all the windows and turned off the lights before you leave the room

A. make sure

B. be sure

C. bring out

D. hold up

答案：

(答案→)A. make sure

B. be sure

C. bring out

D. hold up

解析： be sure 有把握，确信；make sure 务必，一定，千万。