Заполните пропуск одним словом. culture and values: 15. uncle sam day( september 13th) celebrates a symbol of america. uncle sam is certainly one of america`s recognized symbols. uncle sam appears on everything from military posters to cartoon images to advertising media.

15. Uncle Sam Day( September 13th) celebrates a symbol of America. Uncle Sam is certainly one of America`s __most/widely__ recognized symbols. Uncle Sam appears on everything from military posters to cartoon images to advertising media.