A. ticket B. environmental C. when D. halfway A. edge B. o'clock C. as soon as D. pull down A. tell B. chopsticks C. have in common D. mentally A. problem-solving B. peace C. Yes,please D. late A. pneumatic B. activity C. term D. archaeologist A. Thursday B. its C. in some ways D. trumpet A. shall B. alter C. today D. analytical A. exercise B. novelist C. feature D. cannibal A. recover B. zigzag C. army D. warm A. luck B. Monday C. symptom D. salute