A. other B. unpredictable C. pull together D. no problem A. astronaut B. reply C. airmail D. fluently A. notes B. spare C. discover D. next A. drink water B. middle-aged C. latest D. anxiously A. yet B. speedboat C. watch TV D. regiment A. gym B. news C. Wet floor D. disorder A. knowledgeable B. model C. checker D. cut down A. woof B. blister C. astronomy D. group A. planet B. late C. yoyo D. How are you A. none B. hire C. refer to D. conclude