They sometimes watch TV in the living-room in the evenings.
Общий вопрос
Do they sometimes watch TV in the living-room in the evenings?
Вопрос к подлежащему
Who sometimes watches TV in the living-room in the evenings?
Альтернативный вопрос
Do they sometimes watch TV in the living-room or in the bedroom in the evenings?
Специальный вопрос
When do they sometimes watch TV in the living-room?
Разделительный вопрос
They sometimes watch TV in the living-room in the evenings, don't they?