Let's pick it up where we left off. 我们接着上次继续做吧。

　　Why don't you just come back down here and we'll pick up where we left off? 你最好马上下来，我们接着之前的部分做。

　　Shall we continue where we left off last night? 我们要从昨天晚上停止的部分接着做吗？

　　Did you finish reading the novel? 你读完那篇小说了？

　　No. I can't remember where I left off.  没有，我不知道读到哪了。