Do not add fresh or frozen pineapple or kiwi fruit as Jell-O will not set. Pick gelatin flavor to match your fruit. In large bowl, dissolve gelatin in 1 cup boiling water. Add 1/2 cup cold water. Chill until gelatin is like thick syrup. Beat in whipped topping, saving some for garnish if desired. Add about 1 cup fruit cut into small pieces. No need to cut up raspberries. Stir until blended. Turn into pie shell. Chill until firm. Garnish with extra topping and fruit if desired. Make lemon or lime without fruit in it and garnish with lemon or lime twists.