136. Although the vast constellation of small islands that dot the South Pacific has a population of only a few million people, it is home to about a sixth of the world's 6,000 or so languages.

A. pacific has a population of only a few million people, it is

B. Pacific has a population of only a few million people, they are

C. Pacific is populated by only a few million people, and it is

D. Pacific, having a population of only a few million people, is nonetheless

E. Pacific, populated by only a few million people, yet they are

A: correct

B: they指代不清

C: although 和 and连词重复

D: 没有主句

E: 从句没有谓语

注意：

1、they指代的歧义，应该优先指代主语，其次是宾语，主语和宾语的修饰语优先地位比较弱

请问这题,that dot the South Pacific 应该是修饰ISLANDS的,所以 dot 用的是复数.那判断后面HAS的单复数是由哪个词语判断呢?按照白勇书里的说法, some of A, part of A, 或者all of A等等说法都是由of后面的词语的单数或者复数来决定。那么这里就应该由 small islands 来决定，应该用复数have。

B项的they指代不明是什么意思？是说ＴＨＥＹ没有指代吗？我觉得指代ＩＳＬＡＮＤＳ，不对吗？

请ＮＮ赐教。

the vast constellation of small islands that 这里 the vast

constellation of是集合名词的用法,

代词的指代也必须用单数,类似a group of / a team of 这类集合名词, 谓语单数,

代词指代复数

home 这里是发源地意思，那到底是岛呢还是这群岛呢，感觉这群岛更加符合逻辑。

指的是主语, the vast constellation