A. competitor B. method C. television D. megacycle A. communicate B. laugh at C. to one's surprise D. motionless A. pronunciation B. outdoor C. pot D. interpreter A. quicken B. spit C. worry D. seismometer A. go down B. mysterious C. luscious D. according to A. don't mention it B. detect C. saleswoman D. out of work A. invader B. bungalow C. schoolwork D. uncrowded A. come out B. pupil C. prescription D. youth worker A. biogas B. contrary C. be good at D. chemistry A. convey B. go over C. telegraph D. bored