1)I did morning exercises.
I didn't do morning exercises.
Did you do 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 diner.
Did she sleep after dinner?
4)We worked part-time.
We didn't work part-time.
Did you work part-time?
5)They drank tea every day.
They didn't drink tea every day.
Did they drink tea every day?
6)Mike was a student.
Mike wasn't a student.
Was Mike a student?
7)Helen had a car.
Helen didn't have a car.
Did Helen have a car?