—Excuse me, what can I do for you?
—Yes．I’d like to place advertisement for used car in your paper．
A. the; a
B. an; /
C. an; a
D. /; the
网友回答
A. the; a
B. an; /
(答案→)C. an; a
D. /; the
解析：考查冠词的用法。一份广告是泛指，故用an advertisement，一辆用过的车位a used car,句意：打搅了，我能为你干点什么？我想在你们报纸上为我的旧车发一份广告。故选C。