Add punctuation: Post chose to work at home but with a young child this put a strain on the family Posts daughter Phyllis explained later in her life how Gertrude Post had struggled to give her husband the opportunity to devote time to research
A: Post chose to work at home, but with a young child this put a strain on the family. Post's daughter Phyllis explained later in her life how Gertrude Post had struggled to give her husband the opportunity to devote time to research:

Add punctuation: If you are unfamiliar with it then you can download the readymade registry file at the end of this article run it and have the desired results right away
A: If you are unfamiliar with it, then you can download the ready-made registry file at the end of this article, run it and have the desired results right away!

Add punctuation: The financial system for their own subsistence needs constant supply of energy
A:
The financial system for their own subsistence needs constant supply of energy.