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— Please stop smoking. Look at the sign. — Oh ,sorry. I     see it.
A.don’tB.won’tC.wasn’tD.didn’t
D

试题分析:句意:--请停止吸烟,看这个标志。--哦,对不起,我没有看见。根据Look at the sign可知现在已经知道了禁止吸烟的事情,刚才不知道,所以应该用一般过去式。故选D。
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