Make yes / no questions.

1. Do they play

2. Did they play

3. Does she play

4. Did she play

5. Does he walk

6. Did he walk

7. Does she work

8. Did she work

9. Do you like

10. Did you like


(Tư liệu tham khảo: Betty Schrampfer Azar . Understanding and Using English. 3rd ed.)
Review exercise