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Unit13Wearetryingtosavetheearth.LanguageGoalTalkaboutpollutionandenvirnmentalprotectionTotalkaboutairpollution,waterpollutionandso...
Unit7ItisrainingSectionA1a-3bHow’stheweather?It’sraining.It’srainyIt’swindyHow’stheweather?It’ssnowingIt’ssnowyHow’sthewea...
