1. Who gives you English books to read? — My teacher does.
2. Which of them works at the Ministry? — Petrov does.
3. Who is working in that room now? — Belov is.
4. Who comes here in the morning? — We do.
5. Whose son studies English? — My son does.
6. Which of you studies German? — Ivanov and Petrov do.
7. Who is speaking to your teacher now? — My friend is.