A. develop B. spelling C. be made of D. take part in A. neurotoxic B. cross C. pain D. scientific A. afford B. Cuba C. endangered D. get mad A. taunt B. undertaking C. I think so D. put to good use A. mm B. can C. too many D. turn off A. score B. grapefruit C. savings D. fisherman A. wooden B. peasant C. the British Museum D. earth A. tennis B. industry C. advantage D. period A. at the top of B. invariably C. precious D. take for granted A. recount B. oxide C. recycle D. years old