A:We can't be happy !<br/><br/><b>B</b>1:<i>I don't think so.</i><br/><br/><b>B</b>2:<i>That's a wrong idea.</i><br/><br/><b>B</b>3:<i>I disagree.</i><br/><br/>Could they be possible responces to show a disagreement ? Thay are all meant to say <u>we can be happy</u>.<br/><br/>Thanks.