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

1. Общий вопрос: Are they writing the letters from 4 to 5 o\'clock in the classroom? 2. Специальный вопрос: Where are they writing the letters from 4 to 5 o\'clock? 3. Вопрос к подлежащему: Who is writing the letters from 4 to 5 o\'clock in the classroom? 4. Альтернативный вопрос: Are they writing the letters or essays from 4 to 5 o\'clock in the classroom? 5. Разделительный вопрос: They are writing the letters from 4 to 5 o\'clock in the classroom, aren\'t they?