询问感受：How do you feel? 及回答 — 英语情景题
题目
情景对话：放学后，Lily看见Sam一个人坐在座位上，走过去和他聊天。请选择合适的句子补全对话（把序号写在横线上）。
Lily: Hi, Sam! (1)________
Sam: I feel sad, Lily.
Lily: (2)________
Sam: I can't find my new pencil.
Lily: Don't worry. Look! It's under your book.
Sam: Oh, yes! (3)________ Thank you, Lily.
A. How do you feel?
B. Now I feel happy.
C. Why?（为什么）