【題目】----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】

試題分析：考查時(shí)態(tài)與體態(tài)分析。A. don’t know，一般現(xiàn)在時(shí)；B. didn’t feel 一般過去時(shí)；C. won’t know，一般將來時(shí)；D. haven’t known，現(xiàn)在完成時(shí)。句意：—抱歉，但是在飛機(jī)上禁止吸煙—哦，我不知道這個(gè)。抱歉，我不再吸了。根據(jù)句意，這個(gè)人之前不知道，故是在描述過去的事情，用一般過去時(shí)，故選B。

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