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 amount of phosphates that 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作者: greenperfume 时间: 2010-2-2 08:04
A 1972 agreement主语 (between Canada and the United States)reduced谓语the amount of phosphates宾语( that municipalities复数 are allowed to dump into the Great Lakes).
应该是这样吧。作者: 欧麦颗颗 时间: 2010-2-2 08:09
A 1972 agreement主语 (between Canada and the United States)reduced谓语 the amount of phosphates宾语( that municipalities复数 are allowed to dump into the Great Lakes). 应该是这样吧。
可以参考Paris Opera那道题,一样一样的作者: tinamanan 时间: 2010-9-3 21:25
[quote] A 1972 agreement主语 (between Canada and the United States)reduced谓语the amount of phosphates宾语( that municipalities复数 are allowed to dump into the Great Lakes).