Ex-basketball coach Bob Oliva, 65, who guided Christ the King Regional HS in Queens to four championships, pleaded not guilty in a Boston court yesterday to charges of raping a 14-year-old boy almost 34 years ago on a trip to Fenway Park.

Oliva, who lives in Lynbrook, LI, held on to the railing that lines the gallery in Suffolk Superior Court as his knees trembled and he pleaded not guilty to two counts of child rape and one count of disseminating pornography to a minor.