What's your name? — 英语情景题

情景补全：新学期开学，操场上Sam遇见新同学Lily和Ben。补全下面的对话（每空填一个教材学过的句子）。 Sam: Good morning, Lily! Lily: (1)________, Sam! Sam: Who is the boy? Lily: He is my friend Ben. Sam: Hello! (2)________? Ben: My name is Ben. Sam: Nice to meet you, Ben! Ben: (3)________, Sam!