title: Eurozone
context: Nine countries (Bulgaria, Croatia, Czech Republic, Denmark, Hungary, Poland, Romania, Sweden, and the United Kingdom) are EU members but do not use the euro. Before joining the eurozone, a state must spend two years in the European Exchange Rate Mechanism (ERM II). As of January 2017, only the National Central Bank (NCB) of Denmark participates in ERM II.
question: Which EU countries don't use the Euro?
answers: (Bulgaria, Croatia, Czech Republic, Denmark, Hungary, Poland, Romania, Sweden, and the United Kingdom