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