# data[].attributes.headline
America ____ (be)discovered by Leif Eriksson, a viking.

# data[].attributes.subject
America ____ (be)discovered by Leif Eriksson, a viking.

# data[].attributes.headline
Chinampas _____（be） used by ancient Mesoamericans.

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Chinampas _____（be） used by ancient Mesoamericans.

# data[].attributes.headline
The Great Wall of China was _______ (build) by Qin Shi Huang 2240 years ago.

# data[].attributes.subject
The Great Wall of China was _______ (build) by Qin Shi Huang 2240 years ago.

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Romans were ______ (rule) by an Emperor.

# data[].attributes.subject
Romans were ______ (rule) by an Emperor.

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The homework wasn't _____ (do) by the students.

# data[].attributes.subject
The homework wasn't _____ (do) by the students.

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Computers ____ _______ (invent) by many different scientists.

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Computers ____ _______ (invent) by many different scientists.

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The Mona Lisa ____ _______ (not / paint) by Messi.

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The Mona Lisa ____ _______ (not / paint) by Messi.

# data[].attributes.headline
Those people weren't _______ (accept) in school.

# data[].attributes.subject
Those people weren't _______ (accept) in school.

# data[].attributes.body
make the sentence into the passive voice.