1. Did you see Mike on Monday? - Yes, I did.
2. Did the lesson begin at three? - Yes, it did.
3. Did you wake up at seven? - Yes, I did.
4. Did they pay him? - Yes, they did.
5. Did he dance with you? - Yes, he did.
6. Did she buy a coat? - Yes, she did.
7. Did Mike read your message? - Yes, he did.