请教：大全第15题

1.        A new phenomena, which is visible at Managua’s major intersections, are waves of vendors and beggars, which include many children and mob cars at the stoplights.

(A) A new phenomena, which is visible at Managua’s major intersections, are waves of vendors and beggars, which include many children and

(B) Visible at Managua’s major intersections are waves of vendors and beggars with many children, new phenomena that

(C) A new phenomenon
                visible at Managua’s major intersections is waves of vendors and beggars, many of them children, who

(D) Phenomenally new waves of vendors, beggars, and many children are visible at Managua’s major intersections, which（C）

(E) A wave of vendors and beggars, many of whom are children, are visible at Managua’s major intersections, where they are a new phenomenon and

C当中我红字的地方为啥可以用them呢？这是什么结构？

8 独立主格结构  白勇语法

 1)独立主格结构放在句首或句尾,起状语作用,表伴随原因﹑条件﹑状态等。

 2)一般独立主格,与主句形成松散的逻辑关系,形式为:

   n．+ n.; n. + -ed/ing形式; n. + 介词短语;n. +形容词短语

 3)with型独立主格,与主句形成紧密的逻辑联系,形式为:

   with + n. + -ed/ing形式; with + n. + adj.; with + n. + 介词短语
            作状语修饰前一个分句的动作类型词
            例:Visitors to the park have often looked into the leafy canopy and seen monkeys sleeping on the branches, with arms and legs hanging like socks on a clothesline. with引导的独立主格作状语就近修饰sleeping。

 4)each型独立主格,强调句尾名词,形式为:

   句子 + 复数名词结尾, each + 介词短语/形容词短语/-ed形式/-ing形式。

   例:Chinese, the most ancient of living writing systems, consists of tens of thousands of ideographic characters, each character a miniature calligraphic composition inside its own square frame. 独立主格形式 n + n 与主句形成松散逻辑关系