参考答案

正确答案：B
解析：一般而言，第一道题的依据句可以从文章的开始部分寻找。本题的依据句为文章的第一句话“All the people who went to the new supermarket had one great hope：to be the lucky customer who did not have to pay for his shopping．”。B项答案非常明确；其他选择项在本句中没有涉及，属于无关信息。