She was studying when the power went out. - Она училась, когда отключилось электричество.I was watching TV when my friend called me. - Я смотрел телевизор, когда мне позвонил друг.He was cooking dinner for his family last night. - Вчера вечером он готовил ужин для своей семьи.The kids were playing in the park all afternoon. - Дети играли в парке всё послеполудня.We were waiting for the bus when it suddenly started raining. - Мы ждали автобус, когда вдруг начался дождь.