Please fill in the blanks: My father must have felt ___________1_________ (满是欣喜) when in the mid-1920s he won first prize in a ________2_______ (有威望的,有声望) art exhibition held in London. ______3______ (参赛作品) were anonymous, and some of the judges insisted that Winston's picture — one of his first of Chartwell — was the work of a _______4_______ (专业人士), not an _____5_____ (业余人士), and should be ______6______ (取消资格). But in the end, they agreed to rely on the artist's honesty and were delighted when they learned that the picture had been painted by Churchill.