Помогите пожалуйста сделать упражнение 4 и 5, очень срочно, умоляю

I have two sisters. My sisters are students. 2. We are at home. 3. My brother is not at home, he is at school. 4. My mother is at work. She is a doctor. 5. I am not a doctor. 6. I have no sister. 7. He is not a pilot. 8. I have thirty-two teeth. 9. He has a child. 10. She has two children. Her children are at school. 11. Is your father at home? — No, he is at work. 12. Where is your brother? — He is at home.