[简答题]假设你是李明，你买了一本汉英词典，发现有质量问题，回去调换时售货员的态度不好，因此你给书店经理写信反映这个情况，希望事情得到妥善处理。信中需要包括以下内容：
(1)事情的起因；
(2)与售货员交涉的经过；
(3)呼吁服务行业必须提高服务质量。

参考答案: Dear manager,
I am a student of Beijing University. Here I write to complain an unpleasant experience in your bookstore.
Yesterday I bought a Chinese-English dictionary in your bookstore. During my first time using it, I found that several pages had already been broken. So I went back to the bookstore to have it changed. To my surprise, the
shop assistant refused to change it for me. When I mentioned the broken pages, he insisted that I had torn them. They had no patience to hear my explanation.
Of course, I had to come back with the broken dictionary. Therefore, I write to you hoping that you can make them improve their service quality.
Thank you for your concerns.