11.A) To protect persons and property. B) To collect taxes. C) To teach and train citizens. D) To save natural resources for future use. 12.A) By selling services that make life comfortable. B) By selling land containing oil. C) By selling public lands. D) By selling coal and other natural products. 13.A) Environmental pollution and protection. B) Taxes and services for the public. C) Police efforts to protect people. D) People's attitude toward taxes. Passage Two Questions 14 to 17 are based on the passage you have just heard. 14.A) He didn't like physics any more. B) His eyesight was too poor. C) Physics was too hard for him. D) He had to work to support himself. 15.A) He was not happy with the new director. B) He was not qualified to be an engineer. C) He wanted to travel. D) He found his job boring. 16.A) He wanted to work with his friend. B) He enjoyed travelling around the world. C) He wanted to go to Spain. D) He was rejected by the engineering firm. 17.A) He enjoyed teaching English. B) He wanted to earn more to support his family. C) The owner of the school promised his a good position. D) He could earn more as a teacher than as a travel agent. Passage Three Questions 18 to 20 are based on the passage you have just heard. 18.A) It can be cooked in many ways. B) It is delicious but inexpensive. C) It gives higher yields than other grain crops. D) It grows easily in various conditions. 19.A) Fried potatoes B) Tomato juice. C) Sweet corn D) Chocolate beans. 20.A) They led to the discovery of America. B) They made native American foods popular. C) They brought great wealth to Spain. D) They made native American life styles wellknown.