A. schooling B. constitution C. humidity D. tree A. vet B. tiger C. relativity D. drink A. humanity B. model C. Breathtaking D. one A. orange-and-white B. housewife C. truant D. four A. eight B. dramatically C. chorus D. resign A. ten B. downfall C. firework D. air tank A. joke B. test C. quality D. big A. aren't B. to start with C. nationality D. grass A. publishing house B. legendary C. extinct D. seven A. elephant B. do C. just D. all