But college has never been able to work its magic for everyone. And now that close to half our high school graduates are attending, those who don’t fit the pattern are becoming more numerous, and more obvious.  

请教老师，that 指代的是后半句的those who吗？ that close to 这部分请老师分析。网上有原文，可以复制粘贴百度到。谢谢老师。