【答案】This is the hotel____ last month

This is the hotel____ last month

A.which they stayed

B.at that they stayed

C.where there stayed at

D.where they stayed
答案
D
解析
A.which要加at，which they stayed at

B.at which they stayed

C.where不用加at where可以相当于at which，where there stayed

D是正确的