Dear All,<br/><br/>Let's say we want to leave the park we're in right now. And we want to find the same entrance/exit we entered through. Should the question be:<br/><br/><b><i>Which entrance did we enter?</i></b><br/><br/>or <br/><ol><li><b><i>Which entrance did we enter through?</i></b></li><li><b><i>Which entrance did we go through?</i></b></li><li><b><i>Which entrance did we go in?</i></b></li><li><b><i>Which entrance did we come in?</i></b></li><li><b><i>Which entrance did we come through?</i></b></li><li><b><i>Which entrance did we come in through?</i></b></li><li><b><i>Which entrance did we come in by?</i></b></li></ol>