A. sky B. instrument C. help out D. topical A. cold pill B. mask C. island D. welcome A. stone B. address C. soft drink D. prevailing A. hill B. blame C. Niagara Falls D. improbable A. base B. fire C. debt D. in addition A. have lunch B. because of C. page D. sea A. thinner B. river C. rang D. planned A. world B. sparrow C. trap D. rotate A. wounded B. category C. ply D. lake A. measurement B. glance through C. sun D. zoomorphic