15 Change to the plural as in the example:

Решение:

1. It is a book. They are books.
2. He is a man. They are men.
3. She is a girl. They are girls.
4. I am a teacher. We are teachers.
5. It is a mouse. They are mice.
6. You are a student. You are students.
7. I am Spanish. We are Spanish.
8. He is a boy. They are boys.
9. It is a bird. They are birds.
10. You are a doctor. You are doctors.
11. She is a nurse. They are nurses.
12. It's a piano. They are pianos.