Заполнить местоимение I, he, she, it, we, they with 'm not, isn't or aren't.

1 He isn't a policeman. He is a singer.
2 .................. a teacher. I'm a doctor.
3 .................. a postman. He's a pilot.
4 .................. firefighters. They are policemen.
5 .................. an engineer. She's a teacher.
6 .................. singers. We are doctors.
7 .................. balloons. They are robots.
8 .................. a fox. It's a penguin.
9 .................. a teacher. She is a nurse.