A. dangerous B. lose C. Yes,please D. worthless A. mud B. impressive C. evening D. explosion A. case B. madam C. propulsion D. set fire to A. detect B. global C. sportswear D. production A. play a part B. first prize C. gold D. teapot A. competition B. sound C. take out D. settler A. chief B. seashore C. hydrogen D. fire A. P.M. B. divorce C. civilize D. wheel A. have difficulty doing B. February C. soil D. scene A. football player B. finally C. soar D. roughly