A-A+ How can one let bar staff know that he is wait 2022-08-12 09:53:14 问答库 阅读 195 次 问题详情 How can one let bar staff know that he is waiting to be served？A.Tap coins on the counterB.Snap fingersC.Hold money or an empty glass in one"s handD.Wave 参考答案 参考答案：C
