Cook spaghetti according to package directions., In a large skillet, heat oil over medium-high heat. Add shrimp; cook until shrimp begin to turn pink, 1-2 minutes. Add garlic and pepper flakes; cook 1 minute longer., Add tomatoes; bring to a boil. Reduce heat; simmer, uncovered, until shrimp turn pink, 2-3 minutes, stirring occasionally. Remove from heat; stir in basil, salt and pepper. Serve with spaghetti and cheese.