Mr Black has two sons, one of working as a doctor.A. themB. whoC. whomD. whose

发布时间:2020-08-17 07:43:54

Mr Black has two sons, one of     working as a doctor.
A. them
B. who
C. whom
D. whose

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(答案→)A. them
B. who
C. whom
D. whose
解析:句意为:布莱克先生有两个儿子,其中的一个是一名医生。逗号之后没有谓动词,此处不是一个句子,因此也就排除了非限制性定语从句的可能,这里应是一个独立主格结构,其构成方式为:n/pron+doing/done/to do. one of them与working 之间的关系为主动,前面缺少主语的格式,故为one of them,
而one of +whose/who/whom为非限制性定语从句关系词。所以答案应为A
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