THe sentence is: ...so that a federal station could be built <b>to replace</b> the existing facilities.<br/><br/>Can we use <b><i> change, extend</i></b> or <b><i>modify </i></b>instead of<b><i> replace?</i></b><br/><br/><b><i>Thank you</i></b><br/><br/><b><i>Eli</i></b>