主句The engineer is about 50years old.
从句 my father works从句中缺少成分
正确的这个句子:The engineer with whom my father workes is about 50 years old.
主句The engineer is about 50years old.
从句 my father works从句中缺少成分
正确的这个句子:The engineer with whom my father workes is about 50 years old.