A. back and forth B. radiation C. hundred D. fist A. part B. paperwork C. revision D. flight A. encourage B. lifeboat C. cheek D. gradually A. sardine B. lose C. pull-up D. Jordan A. police B. lychee C. respectful D. unbearable A. canteen B. think of C. squeak D. sweater A. truly B. Jupiter C. unexplained D. without A. question B. statement C. pear D. huge A. smart B. tell C. dash D. redesign A. had better B. simply C. injured D. peaceful