离开教室之前，请确保所有的电器都关了。
Please
make sure that all the appliances are turned off
make sure that all the appliances are turned off
before leaving the classroom.

【答案】make sure that all the appliances are turned off

【解答】

【点评】

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发布：2024/5/23 20:38:36组卷：0引用：1难度：0.6

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离开教室之前，请确保所有的电器都关了。Please make sure that all the appliances are turned offmake sure that all the appliances are turned off before leaving the classroom.