A. passer-by B. archaeological C. race D. porpoise A. accidental B. climb on the window ledge C. seat D. clothes A. spare B. suffer from C. worship D. Can I help you A. decision B. helicopter C. alive D. puzzle A. mistaken B. crest C. missing D. noon A. fraction B. motorcycle C. sportsperson D. Sydney A. cook B. Asian C. chemistry D. poverty A. break B. years old C. circumstance D. power line A. stop doing B. behind C. effect D. air tank A. stare at B. be interested in C. memory D. tug of war