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    26．-Excuse me, sir. This is a non-smoking school. -Oh, sorry. I that. I won’t again. A．don’t know B. didn’t know C．won’t know D. haven’t known 【查看更多】

     

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    —Excuse me, sir. This is a non-smoking school.

    —Oh, sorry. I           that. I won’t again.

    A．don’t know               B．won’t know          　C．didn’t know     　　　D．haven’t known

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