—Can you tell me ________ the refrigerator?

—Last month. [ ]

A. when did he buy　

B. where he bought

C. where did he buy　

D. when he bought

中国梦的主体是（）。中国梦归根到底是（）的梦，（）是中国梦的创造者和享有者。

A、人民

B、民族

C、国家

D、世界