1. this man (to be) a writer. he (to write) books. (to write) books since he was a young man. he (to write) eight books.2. what (to do) here since morning? 3. lena is a very good girl. she (to help) her mother about the house. today (to help) her mother since morning. they (to wash) the floor and (to dust) the furniture. now (to cook) dinner together. 4. (to run) now. he (to run) for ten minutes without any rest. 5. what (to do) now? – they (to work) in the reading room. (to work) there for three hours already. 6. where (to be) now? – he (to be) in the garden. he (to play) volleyball with his friends. (to play) since breakfast time. 7. i (to live) in st. petersburg. to live) in st. petersburg since 1990. 8. this is the factory where my father (to work). (to work) here for fifteen years. 9. (to find) your notebook? – no! i (to look) for it for two hours, but (not yet to find) it. 10. you (to play) with a ball for three hours already. go home and do your homework.