Hello,boysandgirls!Today,Iamgoingtotalkwithwhatyoushoul...
問題詳情：Hello,boysandgirls!Today,Iamgoingtotalkwithwhatyoushoulddowhenafirealarmgooff.Ifyouhearthealarm,standinlineatthedoorandwaityourteachertoleadyououtside.Stayclosetoyourteacherandclassmate.Don't...