急!请帮忙看看,万分感谢!

jieshan8899UID: 2251428

Naomi and Charles will represent Ammonton High in the debating contest, their work in this having been excellent this year.
' w& Q: v6 l0 t7 y" O" v: _/ p9 n(A)        contest, their work in this having been excellent this year
(B)        contest; they have done excellent work this year in this
3 q6 D* B; X/ I( g(C)        contest, for this year they have done excellent work in this
(D)        contest, for their work as public speakers has been excellent this year
(E)        contest; their work as public speakers having been excellent this year
1 e$ T% V3 E5 u+ u# g- i# \1 fthis为保指代不清?代词指代不清不是其上文没有其对应所指吗?现在,我认为this与前文的the debating contest.
0 k2 T$ `# f  Q（537、9）
3 _8 ]& U( B- p0 J+ x7 T/ I2 VAlthough the English artist William Blake never having painted portraits, he regarded them as merely mechanical reproductions that, despite their popularity, lacked true creativity.
5 H2 b+ ?( _  w. e/ \; u(A)        Although the English artist William Blake never having painted portraits, he regarded them
5 f  d* X8 E0 e" J8 p2 @(B)        The English artist William Blake never painted portraits, he regarded them
$ ^4 Y3 e: v: T  |) ^* x8 m$ p( j(C)        Never having painted a portrait, they were regarded by the English artist William Blake
(D)        The English artist William Blake never painted portraits; however, regarding them
4 J0 A2 }6 l: M(E)        The English artist William Blake never painted portraits because he regarded them
- t2 g7 K( `; l9 n2 L9 J原文Although 题转折，那么修改的句子也应是转折啊，为何是因果关系呢？
4 O% T- D+ G3 @6 D0 _1 C- ]
原题（414、11）
With billions of tons yet to be mined, some argue that coal conservation measures are unnecessary.
' a3 Q6 k6 |3 ^& S3 }0 e" g(A)        With billions of tons
3 k5 |! ~0 H& W$ {2 S(B)        Because billions of tons of coal are
7 d/ w9 ~7 N3 h( G6 s* P8 p(C)        Because of coal in billions of tons
" d$ f- o2 T  _- s% r(D)        By considering that there are billions of tons
(E)        Aware of the coal in billions of tons
This 和that 是否均在句子中无能充当主和宾。

原题（478、8）
Returning to Dayville after ten years. The small town seemed much livelier to Margo than it had been when she was growing up there.
(A)        Returning to Dayville after ten years, the small town seemed much livelier to Margo
(B)        Having returned to Dayville after ten years, is seemed a much livelier town to Margo
(C)        After Margo returned to Dayville in ten years, the small town seems much livelier
(D)        Margo returned to Dayville after ten years, the small town was seemingly much livelier
(E)        When Margo returned to Dayville after ten years, the small town seemed much livelier to her
6 V1 u/ D) _$ L  ^( g为什么不选B？

请各位一定帮忙看看告之一下,本人着急在等等.谢谢!

michaelzhao007UID: 2195708

1.这个THIS指的是their work as public speakers,然而你却认为指的是the debating contest,你说有没有指代不清?
7 V' N* B! w6 N$ L3 E% Y" f: U' {8 z2.ALTHOUGH后面应该用一个完整的句子,never having painted portraits错....并不是什么因果啊,转折关系之类的东西.
3.(A) involves imprecise modification， 这里应该要指明因果关系的．．所以because
4.B.The introductory phrase, "Having returned to Dayville after ten years," cannot logically modify the pronoun, "it," that immediately follows.
欢迎联系..交流申请和ＳＡＴ
3 l7 c- p$ B/ G# e; ^; h6 z' mＭＳＮ：michaelzhao007@hotmail.com

jieshan8899UID: 2251428

真是万分感谢!你在北京吗?我是帮助孩子问的,今年高二,准备申请2007年的,十月考SAT,邮箱:li4736@vip.sina.com