Is my sister going to the theatre now? (Общий) Is my sister or my brother going to the theatre now? (Альтернативный) My sister is going to the theare now, isn't she? (Разделительный) Where is my sister going now? (Специальный) Who is going to the theatre now? (Специальный к подлежащему)
Is my sister or my brother going to the theatre now? (Альтернативный)
My sister is going to the theare now, isn't she? (Разделительный)
Where is my sister going now? (Специальный)
Who is going to the theatre now? (Специальный к подлежащему)