---Excuse me , Sir . But smoking is not allowed here.
---Sorry, I didn’t see the sign. I’ll my cigarette at once.
A. put out
B. put away
C. put up
D. put off
网友回答
(答案→)A. put out
B. put away
C. put up
D. put off
解析：考查动词短语的辨析。根据句意：对方提醒说这里不许吸烟，可以推测出吸烟者马上要做的是“熄灭”烟。put out“熄灭”。