问题描述:
He has three sisters,all ____ tah he.___,Mary,is a doctor
a.older; The eldest b.older; The oldest
选A.为什么?elder,older the oldesr,the eldest 在用法上有什么区别?
a.older; The eldest b.older; The oldest
选A.为什么?elder,older the oldesr,the eldest 在用法上有什么区别?
问题解答:
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