Раскройте скобки, употребляя гла¬голы в одном из следующих времен: present perfect, present perfect continuous. 1. they (to work) there for already three hours. 2. they (to play) since break-fast time. 3. she already (to do) her homework for two hours; but she (not yet to do) half of it. 4. i (to wait) for you since two o'clock. 5.i already (to read) sixty pages. 6. he (to write) books since he was a young man. he al¬ready (to write) eight books. 7. today she (to help) her mother since morning. they already (to wash) the floor and (to dust) the furni¬ture. 8. you (to find) your note-book? — no! i still (to look) for it. i already (to look) for it for two hours, but (not yet to find) it. 9. you (to play) with a ball for already three hours. go home and do your homework. 10. wake up! you (to sleep) for ten hours already.

1 has been working
2 have been playing
3 she has been doing / hasn t done
4 have been waiting
5 i have already read
6 has been writing/ has written 
7 has been helping/ they have already washed / dusted
8 have you found / i have been looking / i've been already  looking / haven t found 
9 have been playing 
10 you have been sleeping

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.