---Would you mind my opening the window for some fresh air?
---______.A.Why not?B.Yes, help yourselfC.Go ahead, pleaseD.Yes, but you’d better not
网友回答
C解析考查交际用语。Why not? 为什么不呢？Yes, help yourself.是的，请随便用，Go ahead, please. 请吧，Yes, but you’d better not.是的，你最好不要，根据问句你介意我打开窗户让新鲜空气进来吗，从四个选项中可看出C请打开吧，符合题意，故选C。