A. ascertain B. lose C. secretary D. publishing house A. person B. devoted C. awful D. flood A. exhibition B. action C. helpful D. behave A. security B. Christmas tree C. terrestrial D. keep to A. researcher B. seashell C. painful D. situation A. cruise B. talk C. arrive D. agreement A. have dinner B. syrup C. suffer D. New Year's Day A. religion B. have a cold C. stack D. parden A. absolutely B. deed C. ticket office D. bounce A. transfusion B. make up one's mind C. mushroom D. repair