1.I did my morning exercises.I didn't do 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-timeWe didn't work part-timeDid we work part-time?5.They drank tea every day.They didn't drink every day.Did they drink every day ?6.Mike was a studentMike wasn't a studentWas Mike a student?7.Helen had a car Helen didn't have a car.Did Helen have a car ?8.You were a good friendYou weren't a good friend.Were you a good friend?9.также 10. It was difficult to remember everything.It wasn't difficult to remember everythingWas it difficult to remember everithing?