Выполните упражнение, используя времена группы Perfect Continuous. Ex.1
1. He (to write) books since he was a young man. 2. They (to work) in the reading room for three hours already. 3. She ( to sleep) for 5 hours when he found her. 4. The children (to play) for 2 hours when the parents came home. 5. My father (to work) for 2 hours tomorrow at 11 o’clock.
