1.They have been working there for three hours already.
2. They have been playing since breakfast time.
3. She has already doing her homework for two hours; but she has not yet done even half of it.
4. I have been waiting for you since two o'clock.
5. I have already read sixty pages.
6. This man is а writer. Нe writes books. He has been writing books since he was a young man. He has already written eight books.
7. Today she has been helping her mother since morning. They have already washed the floor and dusted the furniture.
8. Have you found your note-book?No,I am still looking for it.I have already looked for it,but haven't found it.
9. You have been playing with a ball for already three hours. Go home and do your homework.
10. Wake up! You have been sleeping for ten hours already.