第4题: [单项选择]Colleague A: Cigarette Colleague B: No, thank you. I've given up smoking. Haven't had one since last month. Colleague A: ______ 参考答案:A 答案解析:[注释] A选项的意思是:那么,你不介意我抽一支烟吧这是在他人面前抽烟时一种有礼貌的请求,用在此对话的语境最恰当。其他选项的内容与前面的说法有矛盾或不符合表达习惯。
A. eliminate price errors B. give itemized printout to the customer C. save time in the checkout lane and help control inventory D. all of the above 参考答案:D