【正确答案】 B

【答案解析】原文：W: Good morning. May I help you?M: (6) Yes, I’ d like to check out now. My name is John White, Room 502. Here’ s the key. W: Wait a moment please, sir. Here ’ s your bill. Would you like to check and see if the amount is correct? M: What1 s the 120 yuan for?W: That’ s for the phone calls you made from your room. M: Okay. (7) Can I pay with traveler’ s checks? W: Certainly. (8) May I have your passport, please? M: Here you are.W: Could you sign each check here for me? M: Sure. W: Here are your receipt and your change, sir. Thank you. M: Thank you. Goodbye. 6. What is the man doing according to the conversation?7. How does the man pay?8. What does the woman ask the man to show?问题问的是“根据对话，男士正在做件么"。根据对话内容可知，男士说自己想要办理退房并随后告知姓名和房间号。由此可知，男士正在办理退房手续，故选 B。