1. Did he cleane his bike yesterday?
2. Did we invite Ann to dinner?
3. Did father check the boys' bikes?
4. Did I help my mom in the kitchen?
5. Did granny work in the garden?
6. Did the teacher talk to the students about the holidays?
7. Did Tom answer my email?
8. Did she call her granny?
9. Did my friend give me this book?
10. Did the go to Sochi last year?
