Переведите на язык типовые предложения в present perfect continuous. 1)они пишут тест уже час. 2)моя сестра убирает комнату с обеда. 3)мальчики плавают в бассейне с утра.

1) They have been writing a test for an hour.
2) My sister has been cleaning her room since lunch.
3) The boys have been swimming in the swimming pool since morning.