They are my best friends.

Let's watch a movie together.

We went to see a movie together.

We are working on the project together.

He works in a mixed residence building.

They are sharing a residence together.

My office is on the third floor of that mixed-use building.

We used to sleep in a dormitory-style arrangement at the university dorm.

When I went on a trip with my friends, there weren't enough hotel rooms, so we all slept together in the same room.

They are my best friends.