Laos has a land area about the same as Great Britain but only 4 million in population, where many are members of hill tribes ensconced in the virtually inaccessible mountain valleys of the north.
A. about the same as Great Britain but only 4 million in population, where many
B. of about the same size as Great Britain is, but in Laos
there is a population of only 4 million, and many
C. that is about the same size as Great Britain's land area, but in Laos
with a population of only 4 million people, many of them
D. comparable to the size of Great Britain, but only 4 million in population, and many
E. comparable to that of Great Britain but a population of only 4 million people, many of whom
答案是e，但是，but后面接了一个many of whom的从句，没有主句谓语，怎么还平行呢？
谢谢了！！
-- by 会员 wakesleep2011 (2011/6/4 8:56:32)