К подлежащему - Who is reading a book?
Специальный - What are you reading?
Разделительный - We are reading a book, aren't we?
Общий - Are you reading a book?
Альтернативный - Are you reading a book or a magazine?
К подлежащему - Who is reading a book?
Специальный - What are you reading?
Разделительный - We are reading a book, aren't we?
Общий - Are you reading a book?
Альтернативный - Are you reading a book or a magazine?