A. hotline B. hill C. thirtieth D. shut off A. expert B. sticker album C. train station D. fishing A. arrange B. will C. remote control D. what A. step B. recede C. ice D. tone A. pale B. visit one's grandparents C. drought D. Arctic A. give to B. snatch C. early D. crash A. copy B. prevent C. show up D. shopping mall A. grandma B. chef C. firearm D. question A. the Yangtze River B. science fiction C. earth D. error A. shabby B. helper C. grandpa D. high blood pressure