A. remainder B. chemical C. adventurer D. morning A. breakfast B. repulsive C. tail D. competitive A. walker B. distinguish C. railway station D. often A. question B. untidy C. superior D. seal A. snag B. show C. Morocco D. sometimes A. get up B. prediction C. offender D. very A. never B. at the foot of C. family D. livelihood A. starve B. battery C. others D. night A. picture B. achievement C. times D. exercise A. require B. nag C. the Opera House D. newspaper