题目内容
He has four children, two of ____ are workers. He also has three sisters; ____ are doctors.
A .who; they B. whom ; who C. whom; they D .they; who
C
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题目内容
He has four children, two of ____ are workers. He also has three sisters; ____ are doctors.
A .who; they B. whom ; who C. whom; they D .they; who
C