1. I did morning exercises. Did I do morning exercises? I did not do morning exercises. 2. He worked at a factory. Did he work at a factory? He did not work at a factory. 3. She slept after dinner. Did she sleep after dinner? She did not sleep after dinner. 4. We worked part-time. Did we work part-time? We did not work part-time. 5. They drank tea yesterday. Did they drink tea yesterday? They did not drink tea yesterday. 6. Mike was a student. Was Mike a student? Mike was not a student. 7. Helen had a car. Did Helen have a car? Helen did not have a car.