Add punctuation: If you know the name of wrong DLL like Angel2sys choose Free downloadsaving money
A: If you know the name of wrong DLL like Angel2.sys, choose Free download--saving money.

Add punctuation: It is fertilized by the mans sperm and the embryo is placed inside the carriers uterus
A: It is fertilized by the man's sperm and the embryo is placed inside the carrier's uterus.

Add punctuation: The name of calva was derived from the field in which the game came to be played which was free of obstacles and rocks
A:
The name of calva was derived from the field in which the game came to be played, which was free of obstacles and rocks.