He is a pupil.
Is he a pupil? (общий)
Is he a pupil or a student? (альтернативный)
He is a pupil, isn't he? (разделительный)
Who is a pupil? (к подлежащему)
What is he? (специальный)
He is a pupil.
Is he a pupil? (общий)
Is he a pupil or a student? (альтернативный)
He is a pupil, isn't he? (разделительный)
Who is a pupil? (к подлежащему)
What is he? (специальный)