Make 5 questions.

They are writing the letters from 4 to 5 o'clock in the classroom.

1. Are they writing the letters from 4 to 5 o'clock in the classroom?

2. Who is writing the letters from 4 to 5 o'clock in the classroom?

3. What are they are doing from 4 to 5 o'clock in the classroom?

4. When are they writing the letters in the classroom?

5. Where are they writing the letters from 4 to 5 o'clock?

6. They are writing the letters from 4 to 5 o'clock in the classroom, aren't they?

7. Are they writing the letters from 4 to 5 o'clock in the classroom or at home?