QUESTION: Fix punctuation: Peritonitis can affect both dogs and cats To learn more about how it affects cats please visit this page in the PetMD health library
ANS: Peritonitis can affect both dogs and cats. To learn more about how it affects cats, please visit this page in the PetMD health library.

QUESTION: Fix punctuation: Unsure about which type of JAP file you have Do you want to know exactly what it is who created it and how to open it
ANS: Unsure about which type of JAP file you have? Do you want to know exactly what it is, who created it, and how to open it?

QUESTION: Fix punctuation: A survey by abdominal xray and ultrasound imaging also may be used if your veterinarian has not been able to settle on a conclusive diagnosis
ANS: A survey by abdominal x-ray and ultrasound imaging also may be used if your veterinarian has not been able to settle on a conclusive diagnosis.

QUESTION: Fix punctuation: On our walk we saw some fantastic things
ANS:
On our walk we saw some fantastic things.