问题补充:
When you talk about a person’s , you are referring to the country, race, or social class of their parents or ancestors.
A. origin
B. nationality
C. generation
D. relation
答案:
(答案→)A. origin
B. nationality
C. generation
D. relation
解析:A n.起源,根源;出身;B国籍;C一代人;D关系,联系;教育:当你们在谈论一个人的出身的时候,你们是在谈论他的父母亲或者祖先的国家,种族或者社会地位。根据第二句中的the country, race, or social class of their parents or ancestors可知是对名词origin的内容的解释。故A正确。