Помогите пожалуйста решить упражнение по английскому языку
Make the following interrogative and negative.
1. Mary has switched on the light.
2. My relatives have received the parcel.
3. Our geography teacher has travelled much.
4. The boy has passed all his exams.
5. The little girl has broken the cup.
6. The director has signed the order.
7. They have seen Swan Lake at the Bolshoi Theatre.
8. You have paid for the stamps.
9. The pupils have solved the problem.
10. Robert has come back.