Translation:Each country has to produce its currency.
The only definition when you hover over "monnaie" is "change," which is not accepted as an answer. Would you be able to add the correct definition, "currency," as an option when one hovers over the word? Thx.
This is a bit sticky I think, because in English there needs to be an antecedent for "its". Hence, it could be "The Euro will be used by all countries in the EU. Each country must produce its currency." Otherwise, the proper (but not literal) English translation would be: "Each country must produce its own currency."