问题描述:
Pens ofen cost three times as much as pencils.(改为同义句) Pens ofen cost ( )( )( )pencils.
Pens ofen cost three times as much as pencils.(改为同义句)
Pens ofen cost ( )( )( )pencils.
Pens ofen cost three times as much as pencils.(改为同义句)
Pens ofen cost ( )( )( )pencils.
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