She showed the visitors around the museum, the construction _____ had taken more than three years.
A.for which
B.with which
C.of which
D.to which
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C解析试题分析：考查定语从句。本题的先行词是the museum,介词of 表示属于关系，which指代先行词在句中做of的宾语。句意：她带领着游客们参观了博物馆，博物馆的建设已经花了三年多的时间了。故C正确。考点：考查定语从句点评：定语从句的介词要根据先行词的搭配，孩子对于从句中的形容词，名词的搭配来选择。