Unit 7 What's that?

Unit 7 What's that?A1---a2---b3---a4---bB1.哭脸2.笑脸3.哭脸4.笑脸C作业精灵提示：请同学们仿照例句说一说。--What's that? --It's a horse.--What's this? --It's a puppy.D1---c2--