With an appropriate relative pro

With an appropriate relative pronoun:
(1)My brother speaks English fluently,____ I don't. (2)He is a very capable manager,____ _none of his predecessors was.
【正确答案】：which; which
【题目解析】：【考点点击】本题考查关系代词。【要点透析】引导非限制性定语从句时,关系代词用 which。第一句中的 which指代 speak English frequently;第二句中的 which指代very capable manager