I should use the active or passive voice here? Which one sounds more common and natural?<br/><br/>1. <b> Your fax <i>of</i> the quotation has been received. OR</b><br/><br/>2. <b>I've received your fax <i>of</i> quotation.</b><br/><br/>- Is the preposition "of" here used correctly? <br/><br/>Thank you!