So the only part you can change is the future.
Probably the only part that I remember with any feeling.
The game was everything to him, the only part of his life with meaning.
It would be the only part of her day she was able to look forward to.
The only part that makes no sense is coming back.
But that is not the only part they have to play.
The only part I don't like is all that standing around.
It was the only part of his body that he could move.
It was the only part of the plan over which she had no control.
Today it is the only part of the house still standing.