Add punctuation: As Amazons core competence is its ability to build globally networked Internetscale redundant data centers we dont expect that Amazon will travel the road of Oracle with its Cloud at Customer portfolio where Oracle manages a cloud appliance inside your four walls
A: As Amazon's core competence is its ability to build globally networked, Internet-scale redundant data centers, we don't expect that Amazon will travel the road of Oracle with its Cloud at Customer portfolio, where Oracle manages a cloud appliance inside your four walls.

Add punctuation: Hairspray by fixing medium acting executive fixative
A: Hairspray, by fixing medium, acting executive fixative.

Add punctuation: Use one of our Pressure Calibrators to verify or calibrate pressure instruments to be within specifications
A:
Use one of our Pressure Calibrators to verify or calibrate pressure instruments to be within specifications.