尽管多年过去，这座老房子依然保持着原貌。

Despite the passing years, the old house ___remains unchanged.

火灾过后，大楼只剩下烧焦的残骸。

After the fire, only the charred ___remains of the building were left.

考古学家发现了古代人类的遗骸。

Archaeologists discovered ancient human ___remains.