定语从句（选择答案并说明理由）
问题描述：
定语从句（选择答案并说明理由）
this is the hotel ____last month.
A.at which they stayed B.at that they stayed C.where they stayed at D.where they stay at
答
D,定语从句应用陈述句语序,即主-谓-宾的结构