【解析】
69．细节理解题。根据文中信件的开头19th January以及文中I’m writing to express my disappointment with the evening my wife and I spent at your restaurant two nights ago.可知，写信是1月19日，而吃饭是两天前，也就是1月17日，故选A。
70．词义猜测题。根据文中First of all, when we arrived, we discovered our table overlooking the garden had been allocated to some other customers. 首先，当我们到达时，我们发现我们俯瞰花园的桌子被……其他一些顾客。可知这里的allocated指的是“给”或者“分配给”，故选B。
71．细节理解题。根据文中The new table we finally received was by the door and when I complained, Max just laughed. Furthermore, as we were sitting down, he said too much to my wife, which deeply embarrassed her. When our meal came, he served the food carelessly and at the end cleared the plates in an awful manner.我们最终收到的新桌子就在门口，我抱怨时，马克斯只是笑了。此外，当我们坐下来的时候，他对我的妻子说了太多，这让她非常尴尬。我们吃饭时，他上菜时很粗心，收盘子也非常不礼貌。可知这里没有提到的是他没有擦桌子，故选A。
72．推理判断题。根据文中I regret (感到遗憾) to inform you that the service from our waiter, Max, was most unsatisfactory. 很遗憾地通知您，我们的服务生马克斯的服务最不令人满意。以及后文中提到的Furthermore, as we were sitting down, he said too much to my wife, which deeply embarrassed her. When our meal came, he served the food carelessly and at the end cleared the plates in an awful manner. 此外，当我们坐下来的时候，他对我的妻子说了太多，这让她非常尴尬。我们吃饭时，他上菜时很粗心，收盘子也非常不礼貌。由此推断出，他认为这个服务员很粗鲁，故选D。
73．推理判断题。根据文中Max wrote a letter to Ms. Hawthorne. 麦克斯给霍桑女士写了一封信。以及信中的内容可知，Hawthorne女士是要服务员Max把顾客当晚的情况再真实的描述一遍，到底发生了什么，所以C选项比较合适，故选C。
74．细节理解题。根据文中I admit I forgot to clear the table the way I was supposed to. 我承认我忘了按我应该的方式清理桌子。可知A选项是正确的，根据文中Another thing, this business about his wife. I only complimented (恭维) her on her dress. She didn’t seem to mind. 还有一件事，关于他妻子的事。我只称赞她的衣服。她似乎不介意。可知B选项是正确的；根据文中When Mr. and Mrs. Metcalf finally turned up, they were at least 45 minutes late. That’s why the table was allocated to some other customers. 当梅特卡夫夫妇终于出现时，他们至少迟到了45分钟。这就是为什么桌子被分配给其他一些顾客。可知C选项是正确的；根据文中I apologize if I have caused you problems, but I’ve been really popular at the Café. Hope to hear from you soon. 我很抱歉给你添麻烦，但我在咖啡馆很受欢迎。希望不久能收到你的来信。可知他并没有提到辞职的事情，故选D。
