1. I am a pupil. I am at school.
2. My brother is a painter. He's not an engineer.
3. My sister is at the work. She's a doctor.
4. He's a student.
5. Are you a student? I'm not, I'm a doctor.
6. My sister is at home.
7. We aren't at school. We are at home.
8. My broter is a pupil. He's at school.
9. Are your mother at home? No, she's at the work.
10. Are your cousin at home? No, he's at school. He's a pupil.