I have a happy family. My father is a worker. My mother is a teacher. Look! This is my sister, she is a nurse. My brother is a doctor. I am a pupil. My grandpa and grandma are old. They are at home.

—            

—       Jack, a doctor.

⑴Who's he?                   A. Yes, it is.

⑵Are you a doctor?             B. He is my brother.

⑶What's on the bed?          C. Yes, I can.

⑷Can you swim?               D. No, I'm not.

⑸Is that your book?            E. It's a doll.