A. boyhood B. warning C. keep cool D. pipe A. hair B. double-decker C. vulnerable D. in cash A. scissors B. diet C. sadness D. route A. amazement B. single C. town D. immune A. skateboard B. racial C. wire D. bad-tempered A. sunken B. resent C. quilt D. be connected to A. afternoon B. suburban C. Poland D. North Pole A. switch off B. bear C. difficulty D. hilly A. get away from B. Grammy C. phenomenon D. trolleybus A. allow B. get around C. bullfight D. developer