Sauté onions, green onions and celery in oil until softened. Add salt, pepper, tomatoes, tomato sauce, wine, sugar, bay leaf, oregano and parsley. Simmer for 15 minutes until thickened. Rinse shrimp. Toss with lemon juice. Heat oil in a large skillet. Sauté shrimp and garlic for 3 minutes, stirring until liquid is evaporated and shrimp are almost cooked through. Sprinkle lightly with salt and pepper.