A. nicotine B. comic C. unit D. identify A. firefighting B. reserve C. shoot D. petrol A. unspoken B. toothpaste C. favor D. nature park A. impoverish B. lollipop C. culpable D. long-eared A. mate B. sensor C. traffic jam D. airport A. perfect B. emotionally C. Vietnam D. enormous A. producer B. holly C. vast D. stomach A. scaly B. say hello to C. backstage D. day A. musty B. deadly C. mentally D. invention A. steep B. pedal C. actually D. academy