问题
单项选择题
My niece has three brothers, all（） than she.（）John, is an oil worker.
A．elder: 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．