1. I did, I didnt, Did I...
2. he worked, he didnt work, did he work
3. she slept, she didnt sleep, did she sleep
4. we worked, we didnt work, did we work
5. they drank, they didnt drink, did they drink
6. Mike wrote, Mike didnt write, did Mike write
7. you had, you hadntyou didnt have, did you have
8. we were, we werent, were we...