Задать вопросы к предложению we study many subjects at college

1. Do we study many subjects at college?
2. Who studies many subjects at college?
3. What do we do at college?
4. What do we study at college?
5. What subjects do we study at college?
6. Where do we study many subjects?
7. What do we do?
8. Do we study many subjects or rules at college?
9. We study many subjects at college, don't we?