задать вопрос к предложению They'll be at home at 10 o'clock

They'll be at home at 10 o'clock,won’t they ? Разделительный

Will they be at home at 10 o'clock? Общий

Who will be at home at 10 o'clock? Вопрос к подлежащему

When will they be at home? Специальный

Will they be at home or at school at 10 o'clock? Альтернативный