1、鄙人做SAT题中语法部分出现一些问题，求英语牛人相助啊！！！

s home, for a visit, never imaging that five years would pass (before) seeing Derek again.(08050629)

应改为he saw。但是不明白原句为什么不对，before即可为adv,又可为prep,还可为conj.，为什么这里要用conj而不是prep呢？

2、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.（09050625）

应改为Helen has revised。问题和1、类似，until 可为conj和prep，怎么区别呢？？？

3、(Opposite to) most people I know, Annie, a good photographer herself, actually enjoys seeing the photographs that her friends take on their vacations.（06050626）

应改为Opposite with,但是两者有何区别呢？

4、Chess players find that playing against a computer is helpful (to improve) their skills, even though no chess-playing computer has yet won a championship.（OC010720）

应改为of improving。 还是不知道区别。

5、Annual visitors to New York City's Central Park number almost ten times (that of) Mount Rushmore.(07100526)

应改为those to。这道题题意不是很明白，帮忙分析下。麻烦了。

悬赏不是很高，但我也是心有余而力不足啊，希望高人捧场！！！", 'contentText': "括号中的部分为原句中的错误部分！

1、Quincy took Dan to Derek's home, for a visit, never imaging that five years would pass (before) seeing Derek again.(08050629)

应改为he saw。但是不明白原句为什么不对，before即可为adv,又可为prep,还可为conj.，为什么这里要用conj而不是prep呢？

2、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.（09050625）

应改为Helen has revised。问题和1、类似，until 可为conj和prep，怎么区别呢？？？

3、(Opposite to) most people I know, Annie, a good photographer herself, actually enjoys seeing the photographs that her friends take on their vacations.（06050626）

应改为Opposite with,但是两者有何区别呢？

4、Chess players find that playing against a computer is helpful (to improve) their skills, even though no chess-playing computer has yet won a championship.（OC010720）

应改为of improving。 还是不知道区别。

5、Annual visitors to New York City's Central Park number almost ten times (that of) Mount Rushmore.(07100526)

应改为those to。这道题题意不是很明白，帮忙分析下。麻烦了。

悬赏不是很高，但我也是心有余而力不足啊，希望高人捧场！！！", 'supplyRich': '

2、2014年北美SAT考试【真题】答案+[736340311-包稳过

2014年北美SAT考试【真题】答案+[736340311-包稳过

3、(选择题）-Do you know the girl __by the window -Ohshe is my cousin Mary. A.sit B.sat C.to sit

(选择题）-Do you know the girl __by the window?

-Oh,she is my cousin Mary. A.sit B.sat C.to sit D.sitting

4、美国高考的详尽细节(二)

ACT是什么？需要多少分才有被美国高校录取的可能？是用纯英语考吗？录取后有奖学金吗？我需要SAT考试的一切细节，希望各位前辈尽量提供给我(不论是我提问所包含的，没问到的也需要) 。

请添加微信号咨询：19071507959

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