问题
选择题
——Do you mind if I smoke?
——____
A．Why not?
B．Yes, help yourself
C．Go ahead
D．Yes, but you’d better not
答案
C
本题考查交际用语，表示许可时，肯定回答常用“Yes, please./ Of course, you may./ Go ahead, please./ Not at all./ Just help yourself.”等表示。B和D选项前后矛盾。