flat

我住在一栋大楼里的公寓里。

I live in a ___flat in a big building.

我朋友住在隔壁的公寓里。

My friend lives in the ___flat next door.

亮亮和他的家人住在 101 号公寓。

Liangliang lives in ___Flat 101 with his family.