【題目】— Excuse me, please look at the sign "No Smoking".— Sorry, I _________.
A.don't notice it
B.am not noticed
C.didn't notice it
D.wasn't noticed

【答案】C
【解析】句意:"打擾下,請看那個"禁止吸煙"的標志。""對不起,我(剛才)沒注意到。""沒注意到"這個動作發(fā)生在過去,故用一般過去時。故選C。

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