The scientific research( )they had devoted much time turned
4个回答
The scientific research( )they had devoted much time turned out meaningful and worthwhile.
A.in which B.at that C.to that D.to which
整句翻译一下：他们花了很多时间的科学研究证明是有意义、有价值的.
分析一下句子结构：
大体结构是主系表：
主语：
The scientific research( )they had devoted much time
其中（）they had devoted much time作为定语从句修饰前面的部分
系动语：turned out,在这里是连系动词；
表语：meaningful and worthwhile.
选择的关键在于devote的用法：
我们知道devote +时间 to sth/sb是固定用法,所以选择D是对的,which在这里只待前面的“The scientific research”,至于C选项“to that”没有这样的用法!
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