Ответ:

1. They didn't answer us and we didn't know the reason. 2. Did you agree with them? 3. I didn't often see them in the park. 4. When you were younger, you always asked for my advice. 5. He was not full of energy at all last month. 6. I did not like my school because the children were not friendly. 7. Who broke my favorite cup? 8. How many times did he repeat his question? 9. He called someone, put the papers on the table and left the room. 10. Did you see her at the party? 11. What did she do on the first of May? 12. What did they want from you? 13. Who gave you my phone number? 14. Where were you on Tuesday morning? 15. He entered the room, closed the window and turned on the air conditioner