1. We did not become good friends.
2. The lesson did not begin 10 minutes ago.
3. He did not bite a piece of cake.
4. A wind did not blow yesterday night.
5. I did not break the ceramic vase.
6. They did not build a nice cottage.
7. She did not burn old letters.
8. The boys did not play in the yard.
9. Mum did not cook many tasty things.
10. I did not finish this work.
