问题补充：
The new hospital will be located in used to be a wasteland and a huge shopping mall will also be constructed there used to be a school many years ago.
A. where, where
B. what , in which
C. what , where
D. which, where
答案：
A. where, where
B. what , in which
(答案→)C. what , where
D. which, where
解析：考查名词性从句和状语从句。第一空What引导宾语从句作为in的宾语，并在句中做主语。第二空where引导状语从句修饰动词。
