试题题干
When he was in his fifties, Mr. Steiner lived in Austria,（）he was known as a musician.
参考答案
正确答案：
试题解析
本题考查非限制性定语从句。填空部分缺少的是状语。完整的应该是He was known as a musician in Austria. in Austria是地点状语，因此用where替代。句意：施泰纳先生五十多岁时住在奥地利，在那里他以音乐家著称。