A. update B. trousers C. response D. forward A. disappear B. seldom C. typewriter D. could A. simply B. Mrs C. skill D. swallow A. union B. lay the table C. dance D. greedily A. cascade B. root C. challenge D. move off A. desert B. harbour C. premium D. lecture A. blame B. design C. lychee D. lord A. research B. lamp C. privately D. in the afternoon A. expose to B. ache C. axe D. moveable A. state B. downfall C. investigate D. formidable