—Excuse me have you got a light?—. I don’t smoke.A. Don’t mention itB. Never mindC. I’m a

问题补充：

—Excuse me, have you got a light?

—. I don’t smoke.

A. Don’t mention it

B. Never mind

C. I’m afraid not

D. Thanks a lot

答案：

A. Don’t mention it

B. Never mind

C. I’m afraid not

D. Thanks a lot

解析：当你没有别人要向你借的东西时，应委婉地表示出来。I’m afraid not是客套用语。故选C。