A. argue B. tremble C. dropped D. dinosaur A. evaluate B. let off C. opaque D. e-mail A. observatory B. outlook C. officious D. hot dog A. in a minute B. volcanology C. unimaginative D. reduce A. encounter B. shoot C. hardly D. yay A. vary from to B. Norwegian C. Bombay D. nearly A. zebra B. candidate C. minute D. neat A. foundations B. typhoon C. institution D. crayon holder A. immigrate B. imperceptible C. traveller D. absolutely A. insularity B. bell C. sculpture D. unconscious