Complex sentence: Margaret Juntwait (born circa 1957) is an American radio broadcaster who is to be the voice of the Metropolitan Opera's Saturday afternoon broadcasts beginning on December 11,2004, replacing Peter Allen after twenty-nine years.
Split into simpler sentences: Margaret Juntwait (born circa 1957) is an American radio broadcaster who is the voice of the Metropolitan Opera's Saturday afternoon broadcasts. She took this position on December 11,2004, replacing Peter Allen after twenty-nine years.