Ответ:

1. She didn't make a mistake in my exercise.

2. I didn't wake very early this morning.

3. He didn't go to school this morning.

4. Henry didn't swim across the river.

5. The girls didn't go to the party.

6. Omar didn't ride to school on his bicycle.

7. My father didn't give us good ideas for our pictures.

8. Yesterday evening I didn't watch TV.

9. The children didn't sing very well.

10. Mary didn't paint this poster yesterday.

11. I didn't write a letter yesterday

12. They didn't take part in the competitions.

Объяснение:

При использовании "Did" глагол омолаживается.