OG12 74

myungryong

74. 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.

(A) reduced the amount of phosphates that municipalities had been allowed to dump

(B) reduced the phosphate amount that municipalities had been dumping

(C) reduces the phosphate amount municipalities have been allowed to dump

(D) reduced the amount of phosphates that municipalities are allowed to dump

(E) reduces the amount of phosphates allowed for dumping by municipalities


正确答案D
答案是可以选出来 但是看完解释还是不太明白句意
按D选项意思是不是 1972年的agreement降低了现在人所允许倒的数量 感觉有点怪怪的
会不会用过去完成时更合适啊 就是1972年的agreement降低了过去人所允许倒的数量

abjure

时间先后问题， agreement 规定的东西是reduce（过去时）之后的“事件”，而这个“事件”的时态逻辑上不可以早过reduce（过去时）。。。。因此“事件”不可以是完成时