Make the following sentences negative
1. The teacher repeated the question. 2. The boys played football in the afternoon yeserday. 3. The girl caught cold 3 days ago. 4. Mother turned off the gas before going to work. 5. They slept in the open air last summer. 6. The pupils answered at once. 7. The boy broke the window in the morning. 8. The woman changed her clothes after the work had been done. 9. The tourists reached the village before dark. 10. The clock stroke five. 11. Our team won the match last night. 12. The doctor allowed you to go out yesterday.