помогите 10 номер СРОЧНО!!!!

1. Is he a student? Is he at the university now? 
2. Is my mother a doctor? Is she in the hospital?
3. Is my father at home now? Isn't he at work?
4. Are you a student? Are you in class now?
5. Are the children in the yard now? Aren't they at school?
6. Is my uncle a lawyer? Is he in his office now?