问题
选择题
Many people tend to buy things from big store, ________ they believe the qualities are good.
A．at which
B．of which
C．which
D．where
答案
答案：B
答案：B。考查定语从句。句意：很多人期望从大商场买东西，他们认为那里的东西质量好。The qualities of things from big stores are good，所以选of which。