英语语法题 名词和代词20
问题描述：
英语语法题 名词和代词20
those boys helped 空格 in their studies.
a.each other
b.one another
c.one and another
d.each and other
答案是B,请解释答案+翻译句子,谢谢
答
those boys helped one another in their studies.那些男孩在学习上互相帮助.
each other 是两个人之间的互相
one anther 两个人以上的互相
没有c 和d 的说法