Is the article optional, wrong, or required?<br/><br/>I played against him 'the' last time.<br/><br/>I beat him 'the' last time.<br/><br/>Where did you eat 'the' last time.<br/><br/>Who did you play with 'the' last time.<br/><br/>I think it is optional in all. Am I right?<br/><br/>Thanks.