首页 > 中学英语试题 > 题目详情
In history, the Romany split into different groups and developed their own language, _______ there a...
题目内容：
In history, the Romany split into different groups and developed their own language, _______ there are now approximately sixty varieties.
A. by which B. of which C. by whom D. of whom
本题链接：