it was hard for him to learn english in a family,in which_of the parents spoke the language

it was hard for him to learn english in a family,in which_of the parents spoke the language

题目
it was hard for him to learn english in a family,in which_of the parents spoke the language
A.noneB.neitherC.bothD.each我只想知道为什么不选A,
答案
选 B neither 两者都不 (parents是两者)
对于他来说,在一个父母都不会说英语的家庭学英语是很困难的.
A none 一个也没有,三者或三者以上,本题是两者,所以不选.
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