write is, are,am.
Hello! I am Tim. I ... a pupil. This ... my sister, Pam. She ... a pupil, too. We ... rats. We go to the rat school. We like school. My bag ... blue and Pam's bag ... pink. We've got a lot of books. They ... in the bookcase.

Hello! I am Tim. I am a pupil. This is my sister, Pam. She is a pupil, too. We are rats. We go to the rat school. We like school. My bag is blue and Pam's bag is pink. We've got a lot of books. They are in the bookcase.