QUESTION: Fix punctuation: However she felt uncomfortable in Madison decided to return home to Mississippi
ANS: However, she felt uncomfortable in Madison decided to return home to Mississippi.

QUESTION: Fix punctuation: HPZPPWN7DLL program freezing and system crashing Important system components such as HPZLSWN7DLL and HPZPRwn7DLL become abnormal
ANS: HPZPPWN7.DLL program freezing and system crashing: Important system components such as HPZLSWN7.DLL and HPZPRwn7.DLL become abnormal.

QUESTION: Fix punctuation: 6 The letter must be submitted Letters to the kids camp Skansen
ANS: 6 The letter must be submitted, Letters to the kids camp Skansen

QUESTION: Fix punctuation: The market for low impact paper and printing services has developed mainly through demand from public sector purchasers
ANS:
The market for low impact paper and printing services has developed mainly through demand from public sector purchasers.