Marinate the shrimp in olive oil, lime juice, salt and pepper for 1 hour. Cut the sausages in quarters. Arrange the shrimp and sausage pieces in alternating order on bamboo or wood skewers. Quarter the onions and peppers. Cut the pepper quarters in half. Arrange onions and peppers on skewers. Cook all skewers on a grill for 2-5 minutes per side or until shrimp turn pale white. Serve over cooked rice.a