1. I (not see)_haven't seen__him since last Monday.
2. George (work) had worked ___at the university so far.
3. My father (not smoke) hasn't smoken___for 5 years.
4. Have You (receive)_recieved__any letter from your parents yet ?
5. Jim sends his love. I (just see)_have just seen__him in the high streets.
6. Monics says she (already catch) has already caught___the train so she'll be here in half an hour.
7. While Diana (watch)_was watching__her favourite TV programme, there (be)was___a power cut.
8. Who (drive)_had diven__the car at the time of the accident ?
9. By the time Sheila (get)__got_back. Chris (go)_had gone__home.
10. I (do)was doing___some shopping yesterday when I (see)saw___your friend.
11. What did you (do)_do__when I (come)came___to your office yesterday ?
12. Who (live)_had lived__in that house before The Smiths (buy)bought___it ?
13. When the police (arrive)arrvied___, the robbers has gone.
14. When I arrived the students (already go)_had already gone__into class.
15. Miss Davis (type)_typed__letters after manager (come)_had come__back.
16. My roomate had finished dinner by the time I (get) _went__ home.
17. They (go)_went__home after they (finish)__had finished_ their work.
18. After they (go) had gone , I (sit) sat___down and (rest)__rested---_.
19. Before she (watch)_watched__TV, she (do) had done____her homework.
20. When she _was___ (be) a child, she always__wanted_ (want) to do the most dangerous things.
21. I suddenly __recognized__ (recognize) the town square I had beeb___(be) there ten years before