has been made form silk.books could only be produced one at

has been made form silk.books could only be produced one at a time by hand 改为现在完成时的被动语
1、has been made form silk.
2、books could only be produced one at a time by hand。
改为被动语态谢谢喽
青蛙屁特 1年前 已收到2个回答 举报

eshuang 幼苗

共回答了22个问题采纳率:81.8% 举报

ooks could only be produced one at a time by hand what have been made form silk

1年前

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SKwoK 幼苗

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Books which had been made from silk could only be produced one at a time by hand...

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