A. problem-solving B. pencil sharpener C. ask D. have lessons A. hide and seek B. overwhelmingly C. within D. world A. medium B. itinerant C. Moscow D. each other A. ripe B. activity C. a bunch of D. until A. goat B. success C. learn D. arrest A. first B. delight C. snorkel D. December A. canyon B. have breakfast C. liberty D. be fond of A. need B. foul C. scraper D. surprising A. brass B. go to bed C. hometown D. better A. go out B. hive C. valuable D. pull down