分类：教育/科学-外语学习
问题：Thisisthehotel_______lastmonth.A? 
This is the hotel _______last month.A. which they stay B. at that they stayedC. where they stayed at D. where they stayed【答案】 【解析】
回答：有两个用法。 第一就是 where they stayed. "Where" 就是指地方的联系代词， 就是指hotel的。第二个用法就是in which they stayed. 如果用which they stayed, 后面要加介词"in". 所以，最后的答案就是D.where they stayed.