A：Hi!Can I help you? B：Yes!please.I want to buy some food. A：What? B：I want to buy hotdog and cola. A:emm..25dollars.please. B：Here you are. A：Thank you! 再问： 可不可以再拓展一下？ 再答： B：And another some one？ A：We have Hamburger ，ice cream ，and orange juice. B：Oh，Is Very Nice.How much the hamburger？ A：Is 5dollars. B:Is very chip.
