Unlike the automobile company, whose research was based on crashes involving sport utility vehicles, the research conducted by the insurance company took into account such factors as a driver’s age, sex, and previous driving record.
company, whose research was based on
company, which researched
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company’s research, having been based on
company’s research on
请教下为什么having been based on crashes 不能做 company's research 的同位语?
同问
不过后面主句用的是过去时,并没有涉及的现在的时间,那么前面用having been done的现在完成时似乎也不是很妥,因为并没有提到动作或者效果会影响到现在
正解
同位语是对前面名词的解释和补充啊,这意思上没有在补充,而且一般同位语就两种形式,一种是名词,一种是同位语从句
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