A. bet B. enough C. master D. show off A. environmentalist B. tiny C. preservation D. distribute A. peak B. involved C. balloon D. word A. soundly B. somewhere C. obstinately D. a bunch of A. would rather B. photographer C. legend D. toothbrush A. by boat B. dragon boat race C. problem D. generally A. invention B. mild C. slaughter D. dolphin A. ego B. police C. be short of D. might A. ticklish B. evaluate C. went fishing D. yoyo A. display B. take a shower C. introduce D. radio