100. The stars, some of them at tremendous speeds, are in motion just as the planets are, yet being so far away from Earth that their apparent positions in the sky do
not change enough for their movement to be observed during a single human lifetime.
(A) The stars,some of them at tremendous speeds, are in motion just as the planets are, yet being
(B) Like the planets, the stars are in motion, some of them at tremendous speeds, but they are
(C) Although like the planets the stars are in motion, some of them at tremendous speeds, yet
(D) As the planets, the stars are in motion, some of them at tremendous speeds, but they area
(E) The stars are in motion like the planets,some of whichat tremendous s peeds are in motion but
(E) The stars are in motion like the planets,some of whichat tremendous s peeds are in motion but
正确答案为B.当时看到b选项多个代词指代，指代模糊，就直接排除了。
想知道选项
A的主要问题是什么？为什么不能用yet being这种结构？这里后面必须用一个从句吗？being不能看成一个分词修饰结构吗？
请各位大虾指点！谢谢！ | 
