BillyandBobbyweresmallboys.Theywerebrothers,andtheyofte...
問題詳情：BillyandBobbyweresmallboys.Theywerebrothers,andtheyoftenfought.LastSaturdaytheirmothersaidtothem,"I'mgoingtocookourlunchnow.Gooutandplayinthegardenandbegood.""Yes,Mum,"thetwoboysanswered,...