Questions 6–12: Label each sentence as simple, compound, or complex. 6. Milk that is sour can be used for cooking. 7. Early this morning the ambulance sped down the street. 8. George refused the other position after he received a raise in salary. 9. The train, which was delayed by a blizzard, was an hour late. 10. The cost of this perfume is high, but the price includes the tariff. 11. The Valley of Ten Thousand Smokes was formed by an eruption of Mount Katmai, Alaska. 12. The United States Naval Academy is located at Annapolis, and the United States Military Academy is located at West Point.