Verified answer

1.fell....was painting

2.was reading...heard

3.Were you watching...phoned...

4.was waiting....arrived

5.was cleaning...asked

6.cost

7.was still burning

8.got

9.discovered

10.was....didn't understand

11. Were you...

12.lived

13.could play...was

14.left

15.met...was doing

16.was paying...heard

17.turned...saw

18.was wearing...saw

19.decided

20.was picking...cut

21.left...said

22.lit...was still burning

23.was walking...attacked

24.arrived...was having...had

25. Do you think...liked

26.realized...was travelling

27.was playing...opened...thew

28.didn't allow...was blowing

29.knew...was looking...hid...went

30.came...were all sitting...was doing...was knitting...were reading...smiled