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Gu was used for playing music with great lyrics in ancient China. (变为反意疑问句)

Gu was used for playing music with great lyrics in ancient China, ________ ________?

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A number of people off the beaches were attacked by sharks last year. (变为否定句)

A number of people off the beaches ________ ________ ________ by sharks last year.

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All the salt here was produced in East and South China. (变为一般疑问句)

________ all the salt here ________ in East and South China?

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These old things on display in the museum were found in the Gobi Desert by a group of scientists in 1920s. (变为特殊疑问句)

________ ________ these old things on display in the museum ________ in the Gobi Desert by a group of scientists?

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The old policeman made the young man move his car away from the front door of the park. (变为被动语态)

The young man ________ ________ ________ ________ his car away from the front door of the park by the old policeman.

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The exhibition of Children's art began a few days ago. (变为一般疑问句)

________ the exhibition of Children's art ________ a few days ago?

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They said that they had never been to America for holidays. (变为反意疑问句)

They said that they had never been to America for holidays, ________ ________?

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Mrs Read didn't sleep well last night because the wind made too much noise. (变为特殊疑问句)

________ ________ Mrs Read ________ well last night?

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His friend had already posted the photos for him. (变为否定句)

His friend ________ ________ ________ the photos for him ________.

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Dave spent two hours playing football with us this morning. (变为同义句)

It ________ Dave two hours ________ ________ football with us this morning.