傍晚时分，乌鸦们飞回了它们在树上的栖息处。

At dusk, the crows flew back to their ___roost in the tree.

傍晚时分，一群麻雀在屋檐下栖息过夜。

As evening fell, a flock of sparrows ___roosted under the eaves for the night.

这对老夫妇在乡村的小屋里找到了他们理想的栖息地。

The elderly couple found their perfect ___roost in a small cottage in the countryside.