A. in disguise B. mountainous C. speed D. has A. idea B. patient C. go swimming D. fundamentals A. amusement park B. pitfall C. textbook D. good-humouredly A. destination B. otherwise C. discover D. remote control A. socialism B. warmly C. dividing line D. note A. ambassador B. brain C. crown D. stay in touch with A. radically B. get C. porter D. lifelong A. yellow B. look up C. scurry D. fully A. active B. tipster C. breadfruit D. constantly A. requisite B. historian C. briefly D. memorize