A. wretched B. switch on C. military D. himself A. chambermaid B. sound C. autonomous D. cola A. biscuit B. sort C. interesting D. cavern A. snack bar B. guy C. professor D. downtown A. violent B. storybook C. soft D. bakery A. chat B. sailing boat C. be satisfied with D. cheat A. staff B. in conclusion C. fix D. shine A. sharpener B. athletics C. complete D. brush A. treat B. Vietnam C. stack D. lecture A. lesson B. air-resistance C. mop D. thirsty