高分求SAT语法题!在线等!又好又快再加分!

高分求SAT语法题!在线等!又好又快再加分!
1. Determined to make a name for herself as a writer of short stories, Helen never submits anything to an editor until {revising} it several times.
答案是{revising}有问题.为什么?怎么改?教一下!
2.on the grounds of的用法.怎么用,加doing?that?
3.Economic conditions demand {not only cutting wages and prices but also to reduce} inflation-raised tax rates.
B.we not only cut wages and prices but also reduce
D.not only to cut wages and prices but also to reduce
我选D,答案B.求解释.
4.In years past, teenagers typically passed notes to their friends in {class rather than electronic instant messages today.}
C.class; today they send electronic instant messages
D.class instead of electronic instant messages today
答案是c,解释原句和D项.谢谢!
5.By the time the bank guard closed the doors, a riot had erupted {due to} the long lines and shortage of tellers.
答案把due to改成了as a result of.有神么区别?解释.
6.Jane Austen wrote novels and they depicted the courtships and eventual marriages of members of the middle classes.
D. novels that depict
我选原句,因为觉得D时态为什么不是过去时?答案是D,求解释.
7.What may be the world's largest rodent is the capybara, a water-loving mammal found throughout {much of} South America.
South America前面是不是省略了places?那不是应该most of (places of)South America.解释为什么用much of对?
8.It is likely that the Coen brothers' latest movie, originally scheduled to be released in time for Thanksgiving, {would be} postponed until summer because of unforeseen postproduction difficulties.
答案 把would be 改成will be.为什么不能用would be表示可能性不大,类虚拟的感觉.?解释.
9.Opinion polls show the public {has about as dim a view of pharmaceutical companies as tobacco companies}.
C.has about as dim a view of pharmaceutical companies as it does of tobacco companies
D.has almost so dim a view of pharmaceutical companies as of tobacco companies.
我选D,答案C.解释!谢谢!

1、更改为having revised,根据句意有先后顺序.
2、On the ground of 意思“以.为理由；根据”eg.The cutbacks are justifiable on the grounds of cost.削减符合成本方面的考虑.直接在of后加名词或动名词
3、demand做谓语动词时后面语句应该跟虚拟的谓语动词即should+动词原形,这里should可以省略；完整的形式是demand/require/...+that+主语+（should）+动词（原形）+...,所以应该选B
有一些词就是这样的,在此不详列.
4、原句意思是“在过去青年人常向朋友们发送信件,而不是像如今这样发送即时电子信息”,句中强调了时间的对比,故D选项不合适,in the past 和today相对比,在句中的位置上夜要显示出来.
5、这个说实话考察得有点偏,属于词义学上的东西,当然对于高中生而言也不超纲,as a result of 一般后面跟负面的因素,而due to则中性或更积极因素.句中提到是riot,所以结果不好,其原因是队伍长等负面因素.
6、其实是你自己立即出现偏差,在这里novels +that+句子形成一个以that引导的定语从句.是不是很直白!
7、这里没有省略,用much of在这是指south america的国土面积,面积本身当然是不可数的,如时间,eg.Another ten minutes is really a lone time when Sam waited for his father before operation room.
8、这里是时态的一致性问题,前面已经是现在时,整个句子的时态要一直,不能限于意思而忽略时态问题.
9、这里as引导的比较对象是公众所持有的观点,重心在持有“has"上,而不是观点持有和烟草公司的比较上.前后比较的对象要一致.
这里回答得比较清晰,如仍不懂可私下问我.