He has two sons,____ works as a chemist.
问题描述：
He has two sons,____ works as a chemist.
A.both of them B.two of whom C.neither of whom D none of them讲解一下,
答
C. neither of whom ...works as a chemist 意思是他俩都不是化学家.
whom 呼应前面作为受词的 sons
neither of ... 两者皆非的意思
希望对您的理解能提供一些帮助.