题目

I have to go now.please remember to _______ the lights when you leave. A．turn off    B．turn down    C．turn up    D．turn on 答案：A 【解析】句意：我现在必须走了。请记住离开时关灯。A. turn off 关掉；B. turn down 关小；C. turn up开大；D. turn on打开。离开时理应“关掉”灯。故选：A。

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