Нужно поставить у вопросительную форму,помогите. David had booked the room in the hotel before.

Вопросительная форма( общий вопрос) Had David booked the room in the hotel before? Who had booked the room in the hotel before? Вопрос к подлежащему Where had David booked the room before? Специальный When had David booked the room in the hotel ? Специальный David had booked the room in the hotel before,hadn't he? Разделительный