A. snack B. key C. mutilate D. unknown A. prevailing B. pest C. pet D. hamper A. user-friendly B. enemy C. wish D. pavement A. puppy B. Vancouver C. sightseeing D. chairman A. ask for B. invite C. eagle D. toot A. hamburger B. profession C. seven D. thanks to A. Denmark B. farmer C. incident D. camp A. resolve B. noon C. rubber D. stand in line A. earn one's living B. dumplings C. integrated D. final A. paper clip B. have a try C. thief D. tennis