A. brass B. relaxation C. theirs D. profound A. institution B. hungry C. discount D. new A. bike B. devote C. milkweed D. fist A. mail B. its C. fraction D. foolish A. bump B. rusty C. post D. him A. Niagara Falls B. correctly C. school begins D. cat A. far away B. bag C. conscientious D. OK A. one after another B. shirt C. air conditioning D. Window of the World A. interviewee B. think C. data D. belong A. open up B. baby C. read English D. root