you turn off all the lights when you leave the classroom． A．Making sure B．To make sure C．Being sure...
2023-01-19 16:41:26 70次 2010-2011学年山东省青岛市第一次统一高考模拟英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
you turn off all the lights when you leave the classroom．
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A．Making sure
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B．To make sure
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C．Being sure
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D．Make sure
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