What have you been doing here since morning? 2. He has been running for ten minutes without any rest. 3. Did you find your notebook? -No! I have already been looking for it for two hours, but I haven’t found it yet. 4. I have been waiting for you since three o'clock. 5. Ann has already been reading for an hour. She has already read sixty pages. 6. My uncle bought his bike three years ago. 7. I have been writing a letter since I came home. 8. Where are your gloves? -I put them into my pocket. 9. We have been knowing each other for four years.