Chia động từ cho đúng

chia động từ cho đúng ;-;
21. It (rain) __________ hard. We can't do anything until it (stop) __________

22. Last night we (watch) __________TV when the power (fail) __________.

23. That evening we (stay) __________up to talk about the town where he (live) __________for some years.

24. I (sit) __________down for a rest while the shoes (repair) __________.

25. Half way to the office Paul (turn) __________round and (go) __________back home because he (forget) __________to turn the gas off.

26. London (change) __________a lot since we first (come) __________ to live here.

27. While we (talk) __________on the phone the children (start) __________fighting and (break) __________a window

28. He used to talk to us for hours about all the interesting things he (do) __________ in his life.

29. You know she (stand) __________looking at that picture for the last twenty minutes.

30. I (spend) __________ a lot of time travelling since I (get) __________this new job.

31. When we (be) __________ at school we all (study) __________Latin.

32. When I (meet) __________ him , he (work) __________as a waiter for a year.

33. After he (finish) __________ breakfast he (sit) __________down to write some letters.

34. She (have) __________a hard life, but she's always smiling.

35. I think Jim (be) __________ out of town.