食物名词可数与不可数 — 英语情景题

在早餐店，Lily 请 Sam 吃早餐。请从括号里选词填空，使对话正确。每空一词。括号内词语：an / some Lily: Good morning, Sam! Have some breakfast, please. Sam: Thank you! Can I have (1)________ apple, please? Lily: Sure. Here you are. Sam: Mmm, it's sweet! Can I have (2)________ milk, too? Lily: Of course. Do you like (3)________ bread? Sam: Yes, I do. Can I have (4)________ bread, please? Lily: OK! Here you are.