问题补充：
Following the girl, we went into a hall, on walls hung a few pictures of some famous scientists．
A. its
B. which
C. whose
D. those
答案：
A. its
B. which
(答案→)C. whose
D. those
解析：考察定语从句.句意:跟着这个女孩,我们进入了一个墙上挂着几张一些著名科学家的画的大厅.a hall是下文wall的逻辑主语,故引导词用whose,选C.
