Read this excerpt from the prologue of Shakespeare’s play Henry V, in which King Henry is referred to as Harry. A kingdom for a
stage, princes to act And monarchs to behold the swelling scene! Then should the warlike Harry, like himself, Assume the port of Mars; and at his heels, Leash'd in like hounds, should famine, sword and fire Crouch for employment. This excerpt mostly introduces
Since there are two people we are talking about, they were closing up practise. "Dr. Girourd and Dr Kutner was closing their practise" doesn't ring quite as well as if you were to say they *were* doing something.