Fruit Punch Freeze

4 c. sugar
4 c. water
3/4 c. lemon juice
2 pkg. loose frozen raspberries
2 pkg. frozen blueberries
1 large can crushed pineapple
6 sliced bananas
1 pkg. frozen strawberries
1 qt. 7 up

Combine sugar and water and bring to boil to dissolve sugar. Add lemon juice and freeze. Just before serving, remove from freezer and add fruit and carbonated drink. Serve with a spoon. Makes a lot.