A. pure B. refuse C. sighting D. serve A. skateboard B. of all ages C. virtually D. choice A. plateau B. like C. ground D. milkman A. turn down B. infectious C. Greek D. orange A. keep a diary B. below C. beer D. businessman A. same B. this C. smell D. fresh A. a lot B. try one's best C. cake D. boast A. ripe B. in other words C. inconvenient D. announce A. cut rice B. blackboard C. knee D. producer A. want B. small C. able D. freeway