题目内容

He made another wonderful discovery, ________ of great importance to science. (NMET 1998)

[  ]

A.which I think is
B.which I think it is
C.which I think it
D.I think which is
答案:A
解析:

这是一个非限制性定语从句,make another wonderful discovery是动宾词组,关系代词which在定语从句中作主语,代表the discovery, I think为插入语.


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