Объяснение:
1. I did my morning exercises.
I didn't do my morning exercises.
Did I do my morning exercises?
2. He worked at a factory. He didn't work at a factory. Did he work at a factory?
3. She slept after dinner. She didn't sleep after dinner. Did she sleep after dinner?
4. We worked part-time. We didn't work part-time. Did we work part-time?
5. They drank tea every day. Did they drink tea every day? They didn't drink tea every day.
6. Mike was a student. Mike wasn't a student. Was Mike a student?
7. Helen had a car. Did Helen have a car? Helen didn't have a car.
8. You were a good friend. You weren't a good friend. Were you a good friend?
9. You were good friends. You weren't good friends. Were you good friends?
10. It was difficult to remember everything. It wasn't difficult to remember everything. Was it difficult to remember everything?
