1) His eyes were so desperate.
He looked at you with such desperate eyes.
2) I couldn't sleep. My room was so stifling.
It was such a stifling room.
3) I have never anyone so thin.
I have never seen such a thin person.
4) His hair was so red.
He had such red hair.
5) The weather was so hot.
It was such hot weather.
6) He looked so pitiful.
He was such a pitiful man.
