840 The United States petroleum industry’s cost to meet environmental regulations is projected at ten percent of the price per barrel of refined petroleum by the end of the decade.
(D) To meet environmental regulations, the cost to the United States petroleum industry is estimated at ten percent of the price per barrel of refined petroleum by the end of the decade
(E) It is estimated that by the end of the decade the cost to the United States petroleum industry of meeting environmental regulations will be ten percent of the price per barrel of refined petroleum.
答案是E。我选D。cost to the United States petroleum industry of meeting？
不是cost……to do 吗，怎么变成of doing 啦？
9 Even as they never forgave the Crusaders who overran their homeland, the Syrians have never absolved the French for taking territory from them.
(A) Even as they never forgave
(B) While they never forgave
前段时间总发不上去，在斑竹的指导下终于解了燃眉之急，感谢！
840 - cost的常用用法：sth cost(v.) sb time/money to do；the cost(n.) to sb of doing sth；the cost(v.) of；D的错误在于A结构中the cost of中of表达的是属性，而the cost to ... of打破了这个结构；另：此题好像是OG补充的一个题目，可参见OG解释；
9 - even as = just as 这是固定搭配
另：大全的问题可以先参考jnlvo的大作：大全简注http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=57755&page=2
谢谢解答。可是840题D的错误还是不明白：这里面没有the cost to ...of 的结构啊，只是用到简单的cost to搭配，后面的三个of 都有固定搭配的：ten percent of ；per barrel of ；by the end of the decade. 能再说明一下吗？
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