Переведите в PRESENT PERFECT CONTINUOUS :)
1.он играет уже 3 часа
2.я танцую с утра
3.вы пишете письмо с утра?
4.ты читаешь эту книгу с утра ?
5мы завтракаем уже 2 часа
6.она смотрит этот сериал уже 5 лет
7. Я занимаюсь Танцами с детства

3. "writing a letter"

He has ben playing fore three hours already.I have been dancing since morning.Have you been writing since morning?Have you been reading the book since morning?We have been having breakfast for two hours already.She has been watching the TV series for five years.I have been dancing since childhood.