Hello everyone!<br/><br/>First of all I want to apologize for all the mistakes I'll do or I'va already done.<br/>However, my question is quite simple, I guess.<br/><br/>I have just wondered whether I have to set a preposition BEFORE the interrogative pronoun in a question or at the end...<br/><br/>example:<br/><br/>What do you dream of?<br/><br/>Of what do you dream?<br/><br/>Are both fine? If not, which one is correct and if yes, what is the difference?<br/><br/>Thanks in advance!