<ol><li><span>I'm falling behind on the essay.</span></li><li><span>I'm falling behind on the slides.</span></li><li><span>I'm falling behind on the reading.</span></li><li><span>I'm falling behind on the homework.</span></li><li><span>I'</span><b><strong>m all caught up</strong></b><span> on the labs. 趕上進度</span></li><li><span>I'm all caught up on the research.</span></li><li><span>I'm all caught up on the slides.</span></li><li><span>I'm all caught up on the essay.</span></li><li><span>I'm all caught up on the homework.</span></li><li><span>Great, I'm all caught up on the research.</span></li></ol>