问题
选择题
--Excuse me, Look at the sign NO SMOKING! --Sorry, I ________ it.
A．don't see
B．didn't see
C．haven't seen
D．won't see
答案
答案：A
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--Excuse me, Look at the sign NO SMOKING! --Sorry, I ________ it.
A．don't see
B．didn't see
C．haven't seen
D．won't see
答案：A