2022년 EBS 수능완성 15강 문장 삽입

2022년 EBS 수능완성 15강 문장 삽입 생각하는영어 [Let's Check it Out] 글의 흐름으로 보아, 주어진 문장이 들어가기에 가장 적절한 곳은? These types of sleep are important in reordering and fixing memories, which can in turn help improve cognitive ability.

Monkeys sleep on branches high in the forest canopy. ( ① ) This certainly keeps them safe from ground predators such as leopards and jaguars, but it must be unstable and uncomfortable. ( ② ) The monkeys sit on as thick a branch as they can find, resting their weight on pads of skin that de...