They say it would cost too much for the American economy to move away from using oil and other fossil fuels.这句的for the American economy应该不是动词不定式逻辑主语吧，我感觉像是状语修饰谓语，意思是“对于……来说”。
The computer center ，___（open）last year, is very popular amongthe students in this school. 因为这个非限定从句有一个具体的时间作为状语，所以我认为它是强调动作，而不是现在的状态。所以我认为最佳的答案是having been opened，opened有点...
-The pop singer's marriage will end in divorce.-Our newspaper office will pay bit money to get the inside story on her divorce.请问这里的 in / on divorce有什么区别吗?
The necessary adjustments will not take place while the state pays workers to wait for their old jobs to return—often on better money than they got before.传统语法上如何分析to wait与for their old jobs to return与破折号后面的部分？不定式to work为目的状语修饰pay，for t...
The
repairs cost a lot, but it's well ( )A.
to spendB.
spentC.
being spentD.
spending答案是B.
spent.这里是否应该说成 but it waswell spent, 用is有误吗？前面的谓语cost这里应该是过去时，不可能是一般现在时吧? 如果是的话，那么后面就应该说成 but it...
He is the waiter to whom I spoke yesterday.
本句中 speak to 的 to 提前到关系代词前。
I know the boy whom you are looking for.
在本句中 look for 中的 for 为什么不提前到 whom 前面呢？
谢谢老师解答。
For the road was cut many years ago—by Fanny Burney, by Aphra Behn, by Harriet Martineau, by Jane Austen, by George Eliot—many famous women, and many more unknown and forgotten, have been before me, makingthe path smooth, and regulating my steps. 请问这句的主语、谓语、宾语（...
If and when the implementing legislation is crafted, then Congress canvote to approve or disapprove the deal, but can’t change or amend it.疑问：查了下字典把 if and when 翻译成“如果”，那么这个和一般的 if 有何差异？