do you use this machine for cutting wood?(改被动语态)how long did they spend in builing the bridge (改为同义句)

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doyouusethismachineforcuttingwood?(改被动语态)howlongdidtheyspendinbuilingthebridge(改为同义句)doyouusethismac

do you use this machine for cutting wood?(改被动语态)how long did they spend in builing the bridge (改为同义句)
do you use this machine for cutting wood?(改被动语态)
how long did they spend in builing the bridge (改为同义句)

do you use this machine for cutting wood?(改被动语态)how long did they spend in builing the bridge (改为同义句)
Is this machine used for cutting wood?
How long did the bridge be built?

do you use this machine to cut food ?(主表被)
how long did it cost them to build the bridge ?

Is this machine used for cutting wood?
How long did it take to build the bridge?