Melt margarine in a large nonstick skillet over medium-high heat. Add sugar and pear wedges; cook 10 minutes or until tender, stirring occasionally. Spoon pear mixture into a shallow dish; set aside.
Add apple juice to pan. Bring to a boil, and cook until reduced to 3 tablespoons, stirring frequently. Pour over pear mixture, and serve warm with sorbet.
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