Chuyển các câu vời động từ chỉ nhận thức sang câu bị động

Dưới đây là các câu đã được chuyển sang câu bị động:

63. It was believed that the earth stood still.
64. This song has been heard being sung by me several times.
65. He was seen stealing your car.
66. The work is being watched by the teacher.
67. You won't be allowed to do that silly thing.
68. The children are not made to work hard.
69. He was made to work all day.
70. The woman was seen by the detective putting the jewelry in her bag.
71. The hostages were made to be blindfolded by the terrorists.
72. Drivers are advised by the police to take the alternative route.
73. I am helped by her to do all these difficult exercises.

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