A. look at B. liner C. advisory D. enter A. fireplace B. secret C. flaw D. hide A. pass B. sportsman C. be worth doing D. library A. swarm B. simply C. yellow D. apart A. wreath B. difficulty C. sixteen D. exterminate A. maple B. abroad C. let down D. mathematical A. repetitive B. seldom C. uncrowded D. also A. distribute B. go for a walk C. lark D. boo A. compact B. excited C. lend D. silver A. disposal B. nineteen C. livelihood D. service