Excuse me.Please look at the sign "No smoking".--Sorry( ) it.A.don't notice B.am not notice C.didn't notice D.wasn't notice

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Excuse me.Please look at the sign "No smoking".--Sorry( ) it.A.don't notice B.am not notice C.didn't notice D.wasn't notice
Excuse me.Please look at the sign "No smoking".--Sorry( ) it.
A.don't notice B.am not notice C.didn't notice D.wasn't notice

Excuse me.Please look at the sign "No smoking".--Sorry( ) it.A.don't notice B.am not notice C.didn't notice D.wasn't notice
C
没注意到是已经发生的事,一般过去式.