Hello! <img class='emoticon' style='Width:19px;Height:19px;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' alt='Emotion: smile'/><br/> Is there any difference between these two sentences?<br/><br/>a) I'd rather you didn't smoke.<br/>b) I'd prefer it you didn't smoke.