Raymond S. Wise typed thus: That's true. But the same pronunciation used as a noun ... determiner: "I'll ask the missus." "That's his missus, all right." (where's the thread on class?) This is an ugly term which

Hi, you asked Which is the correct usage please: " I have ordered a / an MRI (magnetic resonance scan) and will review the patient following this." Rule: With single letters and groups of letters that are pronounced as individual letters, be