问题补充：
The new research center will be set up was a wasteland 20 year ago.
A. in what
B. where
C. in which
D. there
答案：
(答案→)A. in what
B. where
C. in which
D. there
解析：考查名词性从句。句中what引导宾语从句，在从句中作主语。句意：新的研究中心将被建立在前是一个荒地的地方。
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