问题补充：
–Can I use your pen? –.
A. Excuse me. I can’t
B. Excuse me. You can’t
C. Sorry. I don’t have one
D. Sorry. You don’t have one
答案：
A. Excuse me. I can’t
B. Excuse me. You can’t
(答案→)C. Sorry. I don’t have one
D. Sorry. You don’t have one
解析：考查情景交际。句意：----我可以用你的钢笔吗？-----对不起，我没有。故选C.
