A. mean B. unique C. stuffy D. Mongolian A. had better B. keep in order C. a great deal D. have a good time A. knife B. be good at C. London D. fertile A. bring up B. age C. potassium D. contents A. at the age of B. undercurrent C. verse D. thief A. backstage B. climb C. dictation D. doggie A. sheltered B. perform C. outer space D. password A. count B. wash clothes C. motor D. snow A. ping-pong B. any C. production D. backward A. grower B. be surprised at C. anything D. in general