S2 문장의 [______]에 들어갈 단어는?
난이도 고난도 · 힌트를 덜 열수록 높은 점수 (현재 5점)
Classifying things together into groups is something we do all the time, and it isn't hard to see why.
Imagine trying to shop in a supermarket where the food was arranged in [______] order on the shelves: