The engineer ____ my father works is about 50 years old.该选哪个?为什么?The engineer ____ my father works is about 50 years old.A.to whom B.who C.which D.that

问题描述:

The engineer ____ my father works is about 50 years old.
该选哪个?为什么?The engineer ____ my father works is about 50 years old.
A.to whom B.who C.which D.that

D

选 A