A. impact B. construction C. phenomenon D. tune A. in the area of B. individual C. post office D. security A. had B. decay C. centimeter D. fossil A. clue B. be opposed to C. sportsperson D. always A. wash clothes B. keep on C. musician D. chick A. electrical B. spider C. appeal to D. the Dragon Boat Festival A. bacteria B. fuel C. concoct D. penfriend A. lawyer B. drama series C. per D. dig out A. overwhelm B. strange C. galleon D. microwave A. pollution B. superhero C. Denmark D. waterlogged