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【题目】----I’m sorry, but there is no smoking on this flight. ----Oh, I _____ that. Sorry, I won’t again.

A. don’t know B. didn’t know

C. won’t know D. haven’t known

【答案】B

【解析】

试题分析:考查时态与体态分析。A. don’t know,一般现在时;B. didn’t feel 一般过去时;C. won’t know,一般将来时;D. haven’t known,现在完成时。句意:—抱歉,但是在飞机上禁止吸烟—哦,我不知道这个。抱歉,我不再吸了。根据句意,这个人之前不知道,故是在描述过去的事情,用一般过去时,故选B。

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