Could you tell me why 'as cold as' is right in the following stentence? I am really confused why they are different. <br/><br/><b>I hope that this winter won't be <i>___</i> last."</b><br/><br/>Can we use 'so cold as' in this sentence? <br/><br/>What's the difference between 'so cold as' and 'as cold as'?