Withoutfacts,wecannotformaworthwhileopinion,forweneedtohavefactualknowledgeourthinking.A.whichtobebasedonB.uponwhichtobaseC.whichtobaseuponD.towhichtobebased(麻烦分析一下句子成分及选项理由）

Question

Without facts,we can not form a worthwhile opinion,for we need to have factual knowledge_____our thinking.A.which to be based on B.upon which to base C.which to base upon D.to which to be based (麻烦分析一下句子成分及选项理由）

Answer 1

B定于从句阿,其实分析一下就是 to base our thinking upon factual knowledge 而变成定于从句是,upon 放在which前面就行了