---Would you mind my opening the window for some fresh air?
---_______
A. Why not? B. Yes, help yourself.
C. Go ahead, please. D. Yes, but you’d better not.
---Would you mind my opening the window for some fresh air?
---_______
A. Why not? B. Yes, help yourself.
C. Go ahead, please. D. Yes, but you’d better not.
C