| Even though the state has spent ten years and seven million dollars planning a reservoir along the Ubi
River, the project will have to be abandoned as a result of the river becoming so heavily polluted. (A) will have to be abandoned as a result of the river becoming so heavily polluted (B) is to be abandoned on account of the heavy pollution which the river received (C) had to be abandoned because the river had received such heavy pollution (D) has to be abandoned because of the river and its heavy pollution（E） (E) must be abandoned because the river has become so heavily polluted
我把我认为错误的地方标出来了，不知道对不对～～楼主看看吧～漫漫体会 | 
