Answer:
1. He liked to play football
He didn't like to play football
Did he like to play football?
2. The pupils wrote the composition
Did the pupils write the composition?
The pupils didn't write the composition
3. The teacher entered the classroom
Did the teacher enter the classroom?
The teacher didn't enter the classroom
4. Mary bought a new hat yesterday
Did Mary buy a new hat yesterday?
Mary didn't buy a new hat yesterday
5. We went to Tretyakov Gallery last year
Did we go to Tretyakov Gallery last year?
We didn't go to Tretyakov Gallery last year
6. Tom opened the door at 7 o'clock
Did Tom open the door at 7 o'clock?
Tom didn't open the door at 7 o'clock
7. You saw your friend last Sunday
Did you see your friend last Sunday?
You didn't see your friend las Sunday
8. They were at school yesterday
Were they at school yesterday?
They weren't at school yesterday
9. They worked in the garden
Did they work in the garden?
They didn't work in the garden
10. Children swam in the river yesterday.
Did children swim in the river yesterday?
Children didn't swim in the river yesterday