tickets please为什么 tickets 后面要加s?

could i have those two tickets please为什么用could, 售票员说show your tickets中的ticket为什么要加s?难道这里的票是复数吗 还是习惯用语? 关于单词后加S问题.我在这里举个例子.ticket 表示票.是名词.如这个 tickets please.请出示您的票 Show your tickets,please.的回答是什么 Could you please tell me our tickets? Please show your tickets.Let me c_____them. tickets怎么读要谐音 Two return tickets to London,please.这里的数字为什么放在前面. What's happened about the tickets? All the tickets have (s )out. My mother has bought me two tickets already.中bought后为什么可直接加m two tickets to/for the match为什么?