相关Areyoufacingasituati的文学知识

问题详情：Areyoufacingasituationthatlooksimpossibletofix?In1969,thepollutionwasterriblealongtheCuyahogaRiverCleveland,Ohio.It__1____（be）unimaginablethatitcouldeverbecleanedup.Theriverwassopollutedthatit__...