A. first floor B. bookseller C. unimaginative D. building block A. science fiction B. ensue C. terror D. Wet floor A. freestyle B. Chinese knot C. poor D. even though A. naturally B. steer C. kung fu D. clean the door A. relaxing B. date from C. comeback D. sweep the floor A. certainly B. peacemaker C. second floor D. comprehend A. boom B. appoint C. episode D. outdoor A. torchlight B. strata C. preparation D. floor A. weather report B. videophone C. moor D. millennium A. lower B. cannibal C. typical D. ground floor