How long you (to wait) for me? I am really very sorry. 4. Yesterday I (to meet) a friend of mine whom I (not to see) for a long time. 5. Ring me up at eleven o'clock, I (not yet to sleep). 6. You (to be) late for the concert if you (not to take) a taxi. 7. The sun (to set) a long time ago, and it (to begin) to get really cold. 8. When I (to come) home yesterday, my sister already (to re­turn) and (to sit) at the fireplace looking through some old photographs. 9. He (to smoke) three cig­arettes and (to look) through all the books on the shelf, when at last he (to hear) his friend's steps approaching the door. 10. He just (to approach) the door, when she (to enter). 11. He (to write) the composition for three hours and he (to say) he soon (to finish) it as he (to think) over the conclusion now. 12. Hardly1 I (to go) out when I (to remem­ber) that I (to forget) to take my umbrella. 13. Where is the baby? — The nurse (to put) it to bed. 14. He said he (to work) for a long time with­out achieving good results.

How long you HAVE YOU BEEN WAITING for me? I am really very sorry. 4. Yesterday I MET a friend of mine whom I HADN'T SEEN for a long time. 5. Ring me up at eleven o'clock, I WON'T BE SLEEPING YET. 6. You WILL BE late for the concert if you DON'T TAKE a taxi. 7. The sun SET a long time ago, and it IS BEGINNING to get really cold. 8. When I CAME home yesterday, my sister HAD already RETURNED and WAS SITTING at the fireplace looking through some old photographs. 9. He HAD SMOKED three cig­arettes and HAD LOOKED through all the books on the shelf, when at last he HEARD his friend's steps approaching the door. 10. He HAD just APPROACHED the door, when she ENTERED. 11. He HAS BEEN WRITING the composition for three hours and he SAID he WILL soon FINISH it as he IS THINKING over the conclusion now. 12. Hardly HAD I GONE out when I REMEMBERED that I FORGOT/HAD FORGOTTEN (и так и так можно) to take my umbrella. 13. Where is the baby? — The nurse IS PUTTING it to bed. 14. He said he HAS BEEN WORKING for a long time with­out achieving good results.