完形填空。 Mother'sDayisaholidayformothers.Itiscelebrated（慶...
問題詳情：完形填空。Mother'sDayisaholidayformothers.Itiscelebrated（慶祝）intheUnitedStates,England,Indiaand（1）countries.Inashorttime,itbecomeswidelycelebrated.Mother'sDayfallsonthesecondSundayinMay.Onthatd...