My parents (live) in London. They (be) there for 20 years

17. My parents ( live ) in London. They ( be) there for 20 years...................................................................................

18. She ( sit) under a tree when it ( begin) to rain........................................................................................................

19. The farmers ( work ) in the field now....................................................................................................................

20. Do you know that man, who ( smoke ) there ?......................................................................................................

21. I wish you ( not give ) them my phone number......................................................................................................

22. The manager just ( close) the store the moment before I ( arrive)...........................................................................

23. At 4 pm yesterday ? Well, I ( work) in my office       ..............................................................................................

 24 .The war ( break ) out three years ago.................................................................................................................

25. Listen ! I think some ( knock) at the door .............................................................................................................

26. We ( understand) it after the teacher ( explain ) it to us..........................................................................................

27. How often you (read) a newspaper ?....................................................................................................................

28. Neither Tom nor his friends (be) there last night. ..................................................................................................

29. The picture of the soldiers ( bring ) back many memories......................................................................................

30. You can use my phone if yours ( not / work )