A. take turns B. robot-arm C. well D. serious A. absent B. count down C. procession D. how A. have a toothache B. weekend C. dividend D. the Terracotta Army A. food chain B. at the same time C. head D. Macao A. say B. hers C. one after another D. blot A. clean the door B. alienate C. eye D. rang A. open B. global warming C. aloud D. Baltic A. frightened B. stomach ache C. hair D. athletics A. refrigerator B. vie C. arm D. vocabulary A. mouth B. discourage C. predominant D. noisily