专题四语法填空阅读下面材料，在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。Areyoufacingasituationthatlooksimpossibletofix?In1969，thepollutionwasterriblealongtheCuyahogaRivernearCleveland，Ohio.It1.________(be)unimaginablethatitcouldeverbecleanedup.Theriverwassopollutedthatit2.________(actual)caughtfireandburned.Now，yearslater，thisriverisoneof3.________mostoutstandingexamplesofenvironmentalcleanup.Buttheriverwasn'tchangedinafewdays4.________evenafewmonths.Ittookyearsofwork5.________(reduce)theindustrialpollutionandcleanthewater.Finally，thathardworkpaidoffandnowthewaterintheriveris6.________(clean)thanever.Maybeyouarefacinganimpossiblesituation.Maybeyouhaveahabit7.________isdrivingyourfamilycrazy.Possiblyyoudrinktoomuchordon'tknowhowtocontrolyourcreditcarduse.Whenyoufacesuchanimpossiblesituation，don'tyouwantaquickfixandsomethingtochangeimmediately?Whilethereare8.________(amaze)storiesofinstanttransformation，formostofusthe9.________(change)aregradualandrequirealotofeffortandwork，likecleaningupapollutedriver.Justbe10.________(patience)．答案1.was2.actually3.the4.or5.toreduce6.cleaner7.that/which8.amazing9.changes10.patient
