You are in a resturant.<br/><br/> "Could I get a beer please?" or "Can I get a beer please?"<br/><br/> "Could you get me a drink please?" or "Can you get me a drink please?"<br/><br/> Is there any difference among those sentences?<br/><br/> Also this question raised another question:)<br/><br/> a. Is there any diference...<br/> b. Are there differences...<br/><br/> Are those sentences correct and can I say "Are there ANY diferences."<br/><br/> Thanks greatly!