QUESTION: Fix punctuation: He decided to move to a rural area but chose not to return to the town where his family lived
ANS: He decided to move to a rural area but chose not to return to the town where his family lived.

QUESTION: Fix punctuation: A common factor for our mobile projects is that we focus on the story instead of merely creating a technical solution
ANS: A common factor for our mobile projects, is that we focus on the story, instead of merely creating a technical solution.

QUESTION: Fix punctuation: American Mink Rodent small mammals
ANS: American Mink Rodent, small mammals

QUESTION: Fix punctuation: When its deleted by CA INTERNET SECURITY SUITE PLUS v7 the infected DLL file would be removed too
ANS:
When it's deleted by CA INTERNET SECURITY SUITE PLUS v7, the infected DLL file would be removed too.