The old man has four sons, and two _____ turned doctors． A. of which B．of whom C．of them D．of that
2023-01-28 15:43:43 91次 2010年四川省高二上学期10月月考英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The old man has four
sons, and two _____ turned doctors．
A. of
which B．of
whom C．of
them D．of that
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