The Bretons who began emigrating to the United States from the Brittany region of France in the early twentieth century were distinguished from other French citizens by their Celtic origin, but about 40 percent of those who emigrated spoke a Celtic language closely related to Welsh.
(A) but about 40 percent of those who emigrated spoke
(B) about 40 percent of whom spoke
(C) about 40 percent of which were speaking
(D) with about 40 percent of those who emigrated speaking
(E) where 40 percent of them were speakingng
but about 40 percent of those who emigrated spoke画线
选D
求详解,谢谢!
