——where did President Xi Jinping have steamed dumplings?
It was at the Qing Feng Steamed Dumpling Shop he lined up with other customers.
A. That
B. in which
C. where
D. when
网友回答
A. That
B. in which
(答案→)C. where
D. when
解析：句意：上文，习主席在哪里吃包子？下文，正是在庆丰包子店，他和其他顾客一起排队。这里含有一个定语从句，且关系词在从句中作地点状语，故用关系副词where，选C。