自考《英语（二）》真题练习：定语从句中介词加关系词的用法

单选题

1.The engineer______my father works is about 50 years old.

A.to whom

B.on whom

C.with which

D.with whom

正确答案：D

答案解析：with whom引导定语从句。with whom放在从句中即为：my father works with the engineer。