общий) are Masha and Petya reading an interesting book now?
специальный) When are Masha and Petya reading an interesting book?
альтернативный) Are Masha and Petya reading an interesting book or a magazine?
разделительный) Masha and Petya are reading an interesting book now, aren't they?
Сам(а) думай двоешник(ца)
общий) are Masha and Petya reading an interesting book now?
специальный) When are Masha and Petya reading an interesting book?
альтернативный) Are Masha and Petya reading an interesting book or a magazine?
разделительный) Masha and Petya are reading an interesting book now, aren't they?
Сам(а) думай двоешник(ца)