A. observation B. horizontal C. clean-up D. sleep A. men B. may C. make one's way D. pencil box A. seventy B. mum C. cellphone D. shiny A. mirth B. say C. plane D. yak A. cook B. glory C. bought D. strength A. employee B. guide C. sing D. distort A. hair B. pay attention to C. woman D. advisory A. much B. tour C. ghost D. soar A. cubic B. sit C. dull D. cruelty A. origin B. help C. see off D. safekeeping