Elderly patients, many who take expensive brand-name medications daily, could reduce their medical costs by switching to generic drugs and making lifestyle changes.
Amany who 分析该选项
Bmany of them who 分析该选项
Cand many of them who 分析该选项
Dmany of whom 分析该选项
Emany of which 分析该选项
正确答案: D
many of whom可以指代主语或宾语,而many of who只能指代主语
是这样吗?
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