Hi teachers,<br/><br/><a class='_ac _lb' lightbox='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/1791717.0_rx5tkzdnbxyx.png '><img class='_ac _di img-fluid' style='width:598px; height:inherit; background: inherit;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/1791717.0_rx5tkzdnbxyx.png' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/1791717.0_rx5tkzdnbxyx.png' /></a><br/><br/>Exceptional gains<br/>Ewold de Bruijne (Author)<br/><br/>I know what "hang up" means. Is it okay to say "I have to go..." to mean "I have to hang up..."?