Turn the following sentences into the passive voice

Turn the following sentences into the passive voice.

1.      I finished my work at about 5 o’clock.

2.      They gave him a very handsome present when he retired.

3.      We opened the box and took out the cigarettes.

4.      He was made to work very hard by his teacher.

5.      You must answer all the questions on the paper.

6.      They were obliged to leave the hotel by the manager.

7.      The crowd was dispersed by the police.

8.      People will forget the whole incident after a few weeks.

9.      People are talking about him everywhere.

10.  The kindness of the nurses was much appreciated by the patients.

11.  You must plan your work carefully.

12.  They didn’t tell me all the details of the case.

13.  They took him to hospital in an ambulance.

14.  The home team was beaten by the visitors.

15.  Someone has stolen my expensive pen.

16.  Does your country export rice to France?

17.  Many people in the West believe that 13 is an unlucky number.

18.  What did they pay you for doing the job?

19.  Someone should tell him never to do that again.

20.  The teacher won’t correct exercises tomorrow.

21.  They didn’t allow Naomi to take these books home.

22.  How many trees did they cut down to build a new house?

23.  This is the second time they have visited us.

24.  They didn’t looked after the babies carefully.

25.  We have to pick fruit very early in the morning.

26.  Two atomic bombs destroyed two Japanese cities in 1945.

27.  That young doctor is looking after a lot of patients.

28.  They shot down a lot of enemy planes.

29.  The applied sciences have transformed our world within the past few decades.

30.  The geneticists have discovered the laws of inheritance.

31.  He was said to be an intelligent pupil.

32.  Was the repair work done by that mechanic?

33.  The children were fascinated by the wild animals kept in iron cages.

34.  They may be taken back to the hotel.

35.  Dinner must be served on the plane.

36.  They issue library cards to readers once a year.

37.  Some community health centres provide free medical care.

38.  No one helped him do his homework.

39.  People said that the thief stole a lot of things.

40.  Did anybody see him come down the lane?

41.  They considered the West End of London the world of the rich.

42.  Mary has had a friend type all of her papers.

43.  You must finish these exercises before 4 o’clock.

44.  Did his father give him a bicycle for his birthday?

45.  It is said that he was a brilliant scientist.

46.  Don’t make people hate you.

47.  Many people think that ghosts really exist in the world.

48.  The police should have taken the murderer  to the courtroom in the right time.

49.  They are going to perform that play tonight.

50.  Nobody make him clean the windows.