A. fall over B. chaos C. defendant D. dolphin A. let off B. vertebrate C. savannah D. crossing A. sensation B. resin C. authoritarian D. twin towers A. taught B. adolescence C. giant panda D. chapter A. expose B. tribe C. envelope D. steward A. democratic B. have to C. e-book D. keep a secret A. roll B. adverse C. half past one D. hawker A. upward B. ashtray C. car D. juvenile A. Turkish B. German C. retreat D. dislike A. sparrow B. weather C. resent D. anticipate