A、it DroppED DuE to thE wEAknEss oF thEEuro zonE EConomiEs AnD thE inExpEriEnCE oF thEEuropE AnCEntrAlBAnk in DEAling with thE intErnAtionAl mArkEts. B、pEoplE in mostEuropEAn CountriEs rEFusED to usEEuro instEAD oF thEir own CurrEnCy. CountErFEitErs mADE A lot oF FAkE notEs sinCE pEoplE wErE not FAmiliAr with thE nEw CurrEnCy. D.somE CountriEs ArE not rEADy For thEEuro. thEy stoppED usingEuro in DAily purChAsing.