The European Central Bank (ECB) kept its key eurozone interest rates unchanged for the fifth time in a row at its monetary policy meeting on Thursday, despite falling inflation. The Frankfurt-based bank maintained its key refinancing rate, which provides liquidity to the banking system, at 4.5%. The deposit rate, which credit institutions receive when they park money at the bank, also stays unchanged at 4%. Economists generally expect an interest rate cut – much awaited by the economy and private borrowers – to come in June. The bank’s President Christine Lagarde added credence to that view, s…