Сан Саныч
предложения в прошедшем времени, добавив к одному из них нужное по смыслу обстоятельство времени.
My working day lasted (used to last ) eight hours.
Did you often use to get letters from your friends?
Did he do well in French?
We discussed a lot of questions.
They used to stay at the factory not often after 6 o'clock.