European Commission President Jean-Claude Juncker told German television network ARD on Monday that he was waiting for Greece to make its contributions to help the European Union resolve the eurozone crisis. "I've always tried to be respectful with Greece," Juncker said in an interview on the fringes of the G7 summit when asked if he had lost patience with Greece after a report he declined to take a call from Greece's Prime Minister Alexis Tsipras. The EU or the Eurogroup can't build an never-ending bridge." Juncker declined on Saturday to take a phone call from Tsipras because Athens has not yet sent in reform proposals that it promised for Thursday, an EU official said on Saturday.