—Do you mind if I use the phone?—.A. Yes go ahead B. Behave yourselfC. Be my guestD. Do i

问题补充：

—Do you mind if I use the phone?

—.

A. Yes, go ahead

B. Behave yourself

C. Be my guest

D. Do it yourself

答案：

A. Yes, go ahead

B. Behave yourself

(答案→)C. Be my guest

D. Do it yourself

解析：C 考察情景交际。句义：—你介意我用电话吗？—请自便；A是的，去做吧！B行为规矩一点；C请自便；D自己动手做；根据句义说明C正确。