问题
单项选择题
My niece has three brothers, all（）than she. （）John, is an oil worker.
A．older: The oldest
B．older: The eldest
C．elder: The oldest
D．elder: The old one
答案
参考答案：B
解析：
older，oldest用于比较等级。elder，eldest用于称谓。如elder/eldest brother哥哥/大哥。all older than she相当于一个定语从句who are all older than she．
