A. cough B. knowledge C. rickets D. effectively A. cut off B. weather C. vie D. really A. climber B. cheeseburger C. for a start D. think A. living B. break C. kilogram D. cultural A. accompany B. ourselves C. dancing D. letter A. purchase B. leftover C. critic D. passenger A. risk B. water bottle C. play chess D. run-down A. take risks B. NBA C. play computer games D. starfish A. whereabouts B. cockcrow C. knife D. pay attention A. fellow B. stomachache C. publishing house D. pen