问题描述：
请看下面的选择题
--Look at the sign! Smoking is not allowed in the station.
--Oh, sorry, I _____ it.
A.don't notice B. won't notice C.didn't notice D.haven't noticed
--Look at the sign! Smoking is not allowed in the station.
--Oh, sorry, I _____ it.
A.don't notice B. won't notice C.didn't notice D.haven't noticed
问题解答：
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