选B，原文翻译如下：在酒店，客人被招待的方式影响了他们的服务评估。分析：the way the guests were treated 是定语从句，完整句型是：the way that/which the guests were treated（客人被招待的方式），先行词是the way，the guests were treated 作定语用来修饰the way，从句the guests were treated 要用被动语态，表示被招待、被对待的方式。
同学，the way the guests__in the hotel influenced their evaluation of the service.你采用的那个满意答复是不完全正确滴。先行词the way后面跟的是定语从句没错，不过其完整结构应该是the way in which the guests were treated in the
