Thetrainswungbackandforth,itswheelsscreechingagainstthe...
問題詳情：Thetrainswungbackandforth,itswheelsscreechingagainstthetracks.Outsidethewindowthe 1 coldofwinterruled.Thecarriagewasfilledwithfrozen,self-centered,bored 2 .Suddenlyalittleboypushedhi...