A. impulse B. motorbike C. change one's mind D. mean A. workstation B. dragon boat C. sign D. orphan A. moustache B. smoke C. safety rule D. albatross A. click on B. floor C. pet D. latitude A. No smoking B. legibly C. fewer D. diversity A. grind B. No parking C. brave D. firework A. careful B. in general C. earn one's living D. robber A. orchestra B. in charge C. take into D. troublesome A. outing B. methane C. reassure D. veritable A. danger B. skin C. North Pole D. motionless