第20题: [单项选择]A: I’’m going to pop out to get a sandwich,_____. B: No, thank you. I’’m all right. A. How can I help you B. What can 1 do for you C. Can I get you anything D. I’ll be back in a minute. 参考答案:C 答案解析:根据对话内容判断对话发生在工作地点,因此排除A和B。再跟据回答的内容排除D,因为不能形成完整语篇。