A. balloon B. sales department C. sad D. each A. photographic B. stay C. proportion D. settle down A. twentieth B. tidy C. reaction D. landmine A. negative B. ballast C. RSVP D. care about A. put on B. crazy C. learn D. go ahead A. college B. worry about C. wine D. just then A. interval B. lucky money C. resign D. cross A. announcer B. talk back C. unknown D. rule A. behalf B. diet C. pour into D. mamba A. infinitely B. latest C. since D. road