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58. All the flights were cancelled because of fog.

59. This road isn't used often.

60. How are languages learnt?

61. We were advised not to go out alone.

62. A supermarket is going to be built next year.

63. The computer is being used at the moment.

64. A new ring road is being opened round the city.

65. A big hospital which costs much money has been built.

66. I wasn't given the money by the girl.

The money wasn't given to me by the girl.

67. I was asked several difficult questions at the interview by a man.

68. I wasn't told the story.

The story wasn't told to me.

69. This program is being watched by about 30 million people.

70. Some new houses are being built down the street.

71. Nothing in your room has been moved.

72. Oil-lamps were used years ago.

73. When was that hospital opened?

74. The Earth is protected from harmful radiation from the sun by the atmosphere.

75. Were you seen to come in?

76. He hates being stared at.