A. disappearance B. injury C. exist D. try one's best A. Traveling B. orderly C. tough D. contented A. control B. academy C. generalize D. wage A. anonymous B. innocent C. come about D. enjoyment A. remember B. be careful with C. astound D. taikonaut A. bet B. safety belt C. gossip D. headband A. sale B. boxer C. soft toy D. disillusion A. at the age of B. bitterly C. register D. took A. camel B. ransom C. long jump D. judgement A. again B. at a time C. science D. so-so