答：带定语从句的复合句,实际上由两个简单句复合而来：

　　Themanisareporterfromthenewspaper.那人是个报社记者.

　　Myfatheristalkingwithhim.(him是人称代词,就是指前句中的theman)：我父亲正与他交谈.

　　或Myfatheristalkingtohim.我父亲正与他谈话.

　　--》Theman【withwhommyfatheristalking】isareporterfromthenewspaper.

　　【我父亲正与之交谈的】那人是个报社记者.

　　--》Theman【towhommyfatheristalking】isareporterfromthenewspaper.

　　【我父亲正与其谈话的】那人是个报社记者.

　　析：原句有误.