It was hard for him to learn English in a family ,in which _A_ of_英语解答

It was hard for him to learn English in a family ,in which _A_ of the parents spoke the language.
A neither B each
我只想知道这一题为什么不能选B（each）?B到底错在了哪里?

人气：412 ℃　时间：2019-11-20 23:55:56

解答

each用在3者或者3这一上的“每一”的意思
而neither用于两者之间
况且在表示否定的意思的时候只能用 neither 而不能用 each