Does the average American child consume 8.5 hours of media every day when you add all this up? Общий
Does the average American or British child consume 8.5 hours of media every day when you add all this up? Альтернативный
Who consumes 8.5 hours of media every day when you add all this up? Вопрос к подлежащему
When does the average American child consume 8.5 hours of media? Специальный The average American child now consumes 8.5 hours of media every day, when you add all this up, doesn’t he? Разделительный
2 Present Perfect-Past Perfect
3 Past Simple-Past Perfect
4 Future Simple-Future in the Past