1 (750 milliliter) bottle white wine
3/4 cup rum
1/2 cup orange juice
1/3 cup white sugar
1 lemon, sliced
1 lime, sliced
1 green apple, cored and sliced
1 (12 fluid ounce) can or bottle lemon-lime soda
1 cup seedless green grapes, or to taste, frozen
Stir white wine, rum, orange juice, and sugar together in a large pitcher until the sugar is dissolved; add apple, lemon, and lime slices. Gently stir lemon-lime soda into the wine mixture.
Put frozen grapes into serving glasses and pour sangria over the grapes.