人称代词 he / she 的使用 — 英语情景题

情景对话：Lily 在介绍她的两位新朋友。请选择 he 或 she 补全对话。Lily: Sam, these are my new friends, Peter and Kitty. Sam: Is Peter a boy? Lily: Yes. (1)________ is tall and strong. Sam: Is Kitty a girl? Lily: Yes. (2)________ is short and quiet. Sam: Do they like sports? Lily: Peter likes sports, and Kitty doesn't. But (3)________ likes reading books.