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?