Margaret level = 17 0:39 17. Airports level = 13 0:57 Carlos For listening practice level = 14 0:42 AMANDA FRIENDS level = 16 0:49 Treatment Helps Body’s Natural Defenses Fight Cancer level = 9 1:12 Professors, Students Search for Burial Site of North America’s First Poet level = 10 1:50 Want to Help Bees? Plant Flowering Herbs level = 9 1:40 Why Robot Humor Mostly Falls Flat level = 9 2:14 Listen-and-Write가 직접만든 최초의 영어 말하기 트레이닝 앱 - 1초 영어 트레이닝 출시
