50. He bought a new mobile phone last Sunday, because his old one _____. [
(A)] had stolen [
(B)] had been stolen [
(C)] was stolen [
(D)] stolen

46. The children are required not to leave the building unless _____ to do so. [(A)] being told [(C)] be told [(B)] they will be told [(D)] told

47. I’ve never seen the young man _____ next to the director. [(A)] sits [(B)] sat [(C)] sitting [(D)] to sit

48. We object _____ carrying out the plan. [(A)] for [(B)] to be [(C)] about [(D)] to

49. Shanghai has experienced such great changes that everyone can recognize that it is no longer _____. [(A)] what it used to [(C)] the same it used to be [(B)] that it used to like [(D)] what it used to be

51. Samuel Preston’s study shows that __________. [(A)] lifestyles and responsibilities of the elderly are not changing [(B)] most American couples over 40 have no living parents [(C)] middle-aged Americans have to take care of their children and parents at the same time [(D)] elderly people may need care for a long time because they live longer after an illness

52. Who will most probably take care of the middle-aged Americans when they need care themselves? [(A)] They themselves. [(C)] Their children. [(B)] Their close friends. [(D)] Their husbands or wives.

53. All caregivers believe that they can __________. [(A)] care for their elderly parents better than any other people [(B)] keep closer to their old parents by this means [(C)] do much better if they have a job as social workers [(D)] improve the care of the elderly with the help of the social workers

54. Which of the following is NOT a reason why people look after their relatives? [(A)] They feel they are of use to other people. [(B)] They want to set an example to their children. [(C)] They think it is their duty to help their relatives. [(D)] They hope they deserve care when they need it.

55. What is the main idea of the passage? [(A)] Most old people live longer today after an illness than people did years ago. [(B)] Many old people are put into nursing homes by their families, who do not visit them regularly. [(C)] Most elderly people are taken care of by their families, who assume the responsibility for different reasons. [(D)] Most elderly people are satisfied with the better ways of caregiving that social workers have come up with.

56. When he went to a restaurant, Peter would __________. [(A)] pretend that he could not read or write [(B)] pretend to be studying the menu [(C)] be desperate for help from other people [(D)] protect himself by playing a musical instrument