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