A. random B. help C. hobble D. sixth A. capture B. hesitate C. man D. downfall A. living room B. plead C. cat D. the greenhouse effect A. responsible B. excitement C. find D. reference A. ballast B. up to standard C. us D. drag A. theirs B. alienate C. dedicated D. backpack A. independently B. want C. new D. along with A. communicate B. virtue C. jacket D. invaluable A. gel B. yours C. assiduously D. beach A. travelling B. him C. soar D. ahead of