20/ Have the above sentences been finished?

21/ Is English taught here ?

22/ Will she be invited to your wedding party ?

23/ Has the work been finished by Tom ?

24/ Were some exercises given by the teacher?

25/ Have the window of laboratory been changed?

26/ Is the poem going to be written?

27/ Are big cakes being made for the party ?

28/ Is the thief being made inquires?

29/ Must the test be finished before 10?

30/ Will chilren be brought home by buses?

31/ Have your homework be finished ?

32/ Why wasn't he helped ?

33/ How many games has been played ?

34/ Where is English spoken by people?

35/ Who was being kept in the kitchen?

36/ How can the safe be opened?

37/ What books are being read by people this year ? 

38/ How is the lost man found by the police?

39/ Who are the children looked for you ?