A. run B. bought C. qualification D. past A. wisdom B. snowy C. eat D. North Pole A. result B. gorge C. historical D. fly A. conventional B. suspension C. day D. anti A. paleontological B. bactericidal C. letter D. view A. tree B. building block C. in terms of D. remote control A. after B. important C. seal D. connect with A. aircraft B. sky C. wandering D. creativity A. eighty B. sun C. ventilate D. unit A. European B. tap C. suitcase D. last