QUESTION: Fix punctuation: To verify the digital signature open the KeePass folder on your system and rightclick on the file you want to check
ANS: To verify the digital signature open the KeePass folder on your system and right-click on the file you want to check.

QUESTION: Fix punctuation: United Arab Emirates photos of United Arab Emirates United Arab Emirates pictures Dubai at night pictures
ANS: United Arab Emirates, photos of United Arab Emirates, United Arab Emirates pictures, Dubai at night - pictures

QUESTION: Fix punctuation: The featured China GuangDong 108 pcs led T10DIP150cm manufacturers and listed here are sourced by the karnar lighting
ANS: The featured China GuangDong 108 pcs led T10,DIP,150cm manufacturers and listed here are sourced by the karnar lighting.

QUESTION: Fix punctuation: Please note that an increased charge is applicable for allocated seating priority boarding on selected routes
ANS:
***Please note that an increased charge is applicable for allocated seating & priority boarding on selected routes.