A. What happened B. grill C. biochemistry D. stuffy A. sparrow B. annual C. swallow D. supporting A. garden B. October C. set aside D. by mistake A. mere B. ambitious C. happily D. information A. bark B. active C. tap D. hitchhike A. give B. politics C. listeria D. gatekeeper A. profit B. unbearable C. psychologically D. aah A. sail B. harpoon C. prisoner D. London A. chore B. bison C. annoy D. vain A. pot-holing B. taxi driver C. framework D. impression