She began to learn English in her ( ).

问题描述:

She began to learn English in her ( ).
A.fifty
B.fiftieth
C.fiftis
D.fifth

C 拼写错了吧?应该是fifties
她在50多岁的时候开始学英语.
fifties:50多岁
一种表示年纪的常见用法,比如20多岁:twenties