1) I did morning exercises. I didn\'t 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. 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 drunk 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 hadn\'t a car. Had 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?