21,This programme are being watched by about thirty million people.

22, Students are expected not to talk during the examination.

23, This button must not be touched while the experiment is in progress.

24, A whistle will be blown if there is an emergency.

25, A bomb was being carried to a safe place when it exploded.

26, His big mistakes were pointed out to him by them.

27, Tea cannot be made with cold water.

28, The meeting will be held by them before May Day.

29, The window was broken by the boys yesterday.

30, I have not been treated with such kindness.

31, The windows are going to be repainted by my father tomorrow.

32, The engine of the car has to be repaired by them.

33, Is English taught here by them?

34, How many games have been played by the team?

35, Their house had been cleaned when I visited their house.

1, they need the book

2, the lawyer made the decisions.

3, Our army defeats theirs.

4, The better side won the match.

5,They have not improved the roads yet.

6, Tom has not opened the windows before we came.

7, Dr.Johnson will teach my class.