Past simple - negative sentences - Transform the positive sentences into negative sentences

1. He wrote that book. He that book.
2. I left my keys at home. I my keys at home.
3. She came back after midnight. She back after midnight.
4. They told me a that joke. They me that joke.
5. We tried to escape. We to escape.
6. I said hello to everybody. I hello to everybody.
7. She stopped at the lights. She at the lights.
8. It was very hot yesterday. It very hot yesterday.
9. They wore a black tracksuit. They a black tracksuit.
10. He met his friends at the disco. He his friends.
11. We did our homework. We our homework.
12. The lesson began at nine o‘clock.. The lesson at nine o‘clock.
13. She / speak / to her brother. She to her brother.
14. They held hands, I saw them. They hands, I them.
15. He knew his wife 5 years ago. He his wife 5 years ago.
16. We threw away that picture. We away that picture.
17. The jumper kept us warm. The jumper us warm.
18. I sat behind her all the time. I behind her all the time.
19. He lost his way in New York. He his way in New York.
20. They ate the whole cake. They the whole cake.