W: Steve, I can't make our dinner date. I have to work late.<br/>M: <i>________________________________</i><br/><br/>1. Fair enough. It's up to you.<br/>2. I'm sure we can make it.<br/>3. Give me time to think it over.<br/>4. if it's not one thing, it's another<br/><br/>I thought the answer is #1, but the answer is #4<br/><br/>I find the structure of #4 is quite new to me.