Раскройте скобки, употребляя глаголы в требующемся времени.

1. The first person whom Andrew saw as he (to enter)  _____ : his old nurse. She (to sit)  _____ on the sofa. Duringthe last 5 five years she greatly (to change)  _____ and now (to look) a very old woman. 2. She is going toread the letter she just (to receive)  _____ . 3. 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. He said he (to work) _____ for a long time without achieving good results. 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 old photographs. 9. He (to smoke)  _____ three cigarettes and (to look)  _____ through all the books on the shelf whenat last he (to hear) _____ his friend’s steps approaching he door. 10. He just (to approach) _____ the door, whenshe (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. 12. Hardly 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.