Change sentences into the passive ( Past simple

 Change sentences into the passive ( Past simple).

1. Mrs Allen wrote that novel in 1998.
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2. Nam borrowed the reference book from the shelf yesterday.
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3. The boy ate two loaves of bread last sunday.
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4. He left the letter on the desk some minutes ago.
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5- My mother bought a new bike for me last month.
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6- Our form teacher returned our written test to us last lesson.
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7- The Chinese invented paper in the century A.D.
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7- Vietnamese planted trees in their neighborhood a year ago.
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8- The children played games yesterday.
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9- My sister did the housework yesterday.
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10- The publisher published his book in 1996.
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11- They repaired our desk during the weekend.
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12- Jack London wrote the novel "Martin Idon".
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