37. Why didn’t they help him?
=> why wasn't he helped ?
38. How many games has the team played?
=> how many games have been played by the team ?
39. Where do people speak English?
=> where is English spoken ?
40. Who are they keeping in the kitchen?
=> Who are being kept in the kitchen ?
41. How can they open this safe?
=>how can this be opened safe ?
42. What books are people reading this year?
=> what books are being read this year ?
43. How did the police find the lost man?
=> how was the lost man found by the police ?
44. Who look after the children for you?
=> by whom are the children looked after for you ?
45. How long have they waited for the doctor?
=> how long has the doctor been waited ?
46. What time can the boys hand in their papers?
=> what time can their papers be handed by the boys ?
47. Who lend you this book?
=> by whom this book lent ?
48. How many marks does the teacher give you?
=> how many marks are given to you by the teacher ?

37. Why didn’t they help him?
=> Why wasn't he helped ?
38. How many games has the team played?
=> how many games have been played by the team ?
39. Where do people speak English?
=> where is English spoken ?
40. Who are they keeping in the kitchen?
=> Who are being kept in the kitchen ?
41. How can they open this safe?
=>how can this be opened safe ?
42. What books are people reading this year?
=> what books are being read this year ?
43. How did the police find the lost man?
=> How was the lost man found by the police ?
44. Who look after the children for you?
=> By whom are the children looked after for you ?
45. How long have they waited for the doctor?
=> How long has the doctor been waited ?
46. What time can the boys hand in their papers?
=> What time can their papers be handed by the boys ?
47. Who lend you this book?
=> By whom this book lent ?
48. How many marks does the teacher give you?
=> How many marks are given to you by the teacher ?