The food is very good in the dormitory where he lives. ✬

Tom got locked out of his dormitory. ✬

My university has a dormitory. ✬

My college has a dormitory. ✬

We all live in the same dormitory. ✬

I live in the same dormitory as Tom. ✬

Tom and I live in the same dormitory. ✬

I didn't know that Tom lived in the dormitory. ✬

I didn't know Tom lived in the dormitory. ✬

Tom walked back to his dormitory by himself. ✬