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OG-13-SC-77
OG-12-SC-74
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00:00:00

A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.

Areduced the amount of phosphates that municipalities had been allowed to dump
Breduced the phosphate amount that municipalities had been dumping
Creduces the phosphate amount municipalities have been allowed to dump
Dreduced the amount of phosphates that municipalities are allowed to dump
Ereduces the amount of phosphates allowed for dumping by municipalities

正确答案: D

The answer of 885 - 2 is wrong

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XUANYA2005

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发表于 2005-10-17 02:07:00 | 显示全部楼层

以下是引用catking2003在2005-10-16 18:49:00的发言：

..............the answer is undoubtedly A !! and I don't remember og has this question, anyway.

how can you use present tense to modify subject in a sentence in which there are only past-tense words, and "municipalities had been allowed to dump" indicates that this action predates the agreement.

if you use "had been", that means this action predates the agreement, so how can that agreement reduce something finished before the agreement?