20. When we (arrive) ______arrive_____ in London tonight, it probably (rain) ________be raining_____
21. It (rain) ____is raining__ hard. We can’t do anything until it (stop) ___stop_____
22. Last night we (watch) ____-were watching_____ TV when the power (fail)_____ failed_____
23. That evening we (stay) _____stayed ___--up to talk about the town where he (live)_____has lived _____for some years.
24. I (sit)____ sit __down for a rest while the shoes (repair) ____is being repaired_____.
25. Half way to the office Paul (turn) _____turned ____round and (go)____ went ____-back home because he (forget)____ forgot ____to turn the gas off.
26. London (change) ____has changed _____a lot since we first (come) ____came _____to live here.
27. While we (talk)_____ were talking______ on the phone the children (start)____ started _____fighting and (break) _____breaking _____a window
28. He used to talk to us for hours about all the interesting things he (do)________ has done_____ in his life.
29. You know she (stand)___ has stood_____ looking at that picture for the last twenty minutes.
30. I (spend) ______have spent ______a lot of time travelling since I (get) ____got _____this new job.
31. When we (be)_____ are ____at school we all (study) _____study_____ Latin.
32. When I (meet)____ met _____him, he (work)_____ has work_____ as a waiter for a year.
33. After he (finish) _____had finished _____breakfast he (sit) ____sat _____down to write some letters.
34. She (have) _____has _____a hard life, but she's always smiling.
35. I think Jim (be)_____ is _____out of town.