The municipal buildings are those in which a town's officials work.
问题描述：
The municipal buildings are those in which a town's officials work.
答
*办公大楼就是城镇官员工作的地方这里的in是不是前置了？好像正常应该是：The municipal buildings are thosewhich a town's officials work in. 为什么要前置呢？可以前置可以后置，一般前置如on which，in which，of which