A. biochemist B. take a walk C. graduate D. up to now A. description B. unit price C. circus D. counteract A. youth B. news C. recommend D. grayish A. tool B. distance C. unsettle D. fry A. avenue B. telegraph C. frost D. purpose A. favour B. switch C. civilization D. systematic A. finance B. excite C. mild D. position A. birth B. dining room C. survive D. get into A. catwalk B. unit C. sink D. all-time A. bark B. lurk C. roll D. commercialization