Задание 35. Помогите пожалуйста!!!

1. His father worked at a plant. 2. I often saw them in the park. 3. Did your pupils read English books? 4. Her mother taught chemistry at school. 5. We didn`t know his address. 6. He got up, washed, dressed, had breakfast and went to school. 7. Did the doctor speak English? 8. We understood the rule. 9. My friend didn`t like such films. 10. In summer we picked berries and mushrooms. 11. They didn`t change trains there. 12. This worker repaired his car himself.