1. 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(A) (E) reduces the amount of phosphates allowed for dumping by municipalities 此题OG11答案是D,我们一般都会和大全一样选A,主要是因为我们对这个从句的理解不一样。我们一般理解这个amount是被协议修改前的量,从句是对amount的修饰,而根据OG的解释,这个从句就是用来说明amount的,是修改后,至今都被允许的量。
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