他在五十几岁的时候出名了.He became famous ____ his ____.
问题描述：
他在五十几岁的时候出名了.He became famous ____ his ____.
答
以上两个都错了,正确的是：He became famous （in ) his( fifties )
在某人几十岁：in+ one's + 整十数词的复数形式.
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