（简单的英语）Say thanks when you are s

网友回答

served
Say thanks when you are served something.
当你接受服务的时候,说“谢谢”.
被服务：be served
不懂请追问,满意请采纳.谢谢!
======以下答案可供参考======
供参考答案1:
suffering？shopping？studying？sorrired？suggested？successful?stressed?
供参考答案2:
selling？有没有前后的语境？