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The boy killed the spider.
The spider was killed by the boy.
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Okay!
You must do the homework.
The homework must be done.
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Okay!
He will make a cake for her birthday.
A cake will be made for her birthday.
Oops!
Okay!
My grandmother made the cake yesterday.
The cake was made yesterday.
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Okay!
People eat 40 million hamburgers every day.
40 million hamburgers are eaten every day.
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You should eat more vegetables.
More vegetables should be eaten.
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Okay!
They use worn out car tires to build the external walls.
Worn out car tires are used to build the external walls.
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Okay!
Michael Reynolds developed the first earthship in the 1970s.
The first earthship was developed in the 1970s.
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Okay!
They clean the windows every week.
The windows are cleaned every week.
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Okay!
We are watching the Real Madrid match.
The Real Madrid match is being watched.
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Okay!
People can build earthships from available recycled materials.
Earthships can be built from available recycled materials.
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Okay!
Mary Shelley wrote the novel Frankenstein.
The novel Frankenstein was written by Mary Shelley.
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I planted a tree yesterday.
A tree was planted yesterday.
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Okay!
A guide will take you to your seat.
You will be taken to your seat.
Oops!
Okay!
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