实际上时命令对方做某事，用祈使句就可以了！
Make sure all the lights are turned off before you leave.
turn all of lights off
make sure aii the lights are turned off.
Make sure all lights are off,please!lights 灯sure 作确保all表示所有off是关的意思Make为了强调，放句前please 请，Make后必接名词，只有在最后强调了
Please make sure that all the lights are turned off 有不明白的地方再问哟，祝你学习进步，更上一层楼！ (*^__^*)
Please make sure (ensure) all lights are turned off.
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s泡沫之殇y
