상품명 : What Was 12 / Lewis and Clark Expedition?
상품명 : What Was 16 / San Francisco Earthquake?
상품명 : What Was 19 / Salem Witch Trials? (What Were)
상품명 : What Was 22 / Roaring Twenties? (What Were)
상품명 : Where Is 07 / Galapagos Islands? (Where Are)