3、devastatingtoit. 这里的park充当的是形容词;所以不能做IT的先行词;应把句子改成Therangersdiscussedmeasurestopreventseverewildfires,whichwouldbedevastatingtothepark. TheenergysourceonVoyager2isnotanuclearreactor,inwhichatomsareactivelybrokenapart;ratherakindofnuclearbatterythatusesnaturalradioactivedecaytoproducepower. (A