C．familiar D．patient

　　解析：选B　由空后的"because there were no hard selling (硬性推销) practices"可知，作者对他们的服务很满意。

　　7．A.call B．present

　　C．letter D．report

　　解析：选C　由下文"the manager answered my letter"的提示可判断选C项。

　　8．A.replied B．referred

　　C．turned D．wrote

　　解析：选A　由下文"I wrote"可知，作者回复了它。

　　9．A.which B．while

　　C．unless D．where

　　解析：选D　由"a field"可知，此处指地点，用where。

　　C．suggestion D．comment

　　解析：选B　由"one could ask about his/her file or ask a question"的提示可判断选B项。

　　11．A.encouraged B．rewarded

　　C．thanked D．comforted

　　解析：选C　由下文"how I appreciated"可推断，作者感谢他们。

　　12．A.served B．treated

　　C．knew D．awarded

　　解析：选A　由上文"I felt quite __46__ with their customer services"可推断，此处指他们为顾客提供了很好的服务。

　　13．A.supports B．opinions

　　C．strengths D．efforts

　　解析：选D　由上文"the team who worked hard"可推断此处指他们的努力。

　　14．A.family B．team

　　C．boss D．friend

　　解析：选B　由上文"the people and the team"中team的提示可判断选B项。

　　15．A.exciting B．loud

C．kind D．defending