问题描述：
The engineer ______my father works is about 50 years old.
这个题改选那个啊顺便给说一下具体原因啊
A.to whom B.on whom C.with which D.with whom
这个题改选那个啊顺便给说一下具体原因啊
A.to whom B.on whom C.with which D.with whom
问题解答：
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