1 I did morning exercises.I didn't do morning exercises.Did I 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.Did she sleep after dinner?She didn't 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.They didn't drink tea every day.Did they drink tea every day?6 Mike was a studentMike wasn't a student.Was Mike a student?7 Helen had a car.Helen hadn't a carHad Helen a car?8 You was a good friend.You wasn't a good friend.Was 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?