QUESTION: Fix punctuation: Wonderful length that gives extra warmth
ANS: Wonderful length that gives extra warmth.

QUESTION: Fix punctuation: It has throughout been a pleasure because the service level is high the reaction time short and services competent
ANS: It has throughout been a pleasure because the service level is high, the reaction time short and services competent.

QUESTION: Fix punctuation: Guarini was aware of the transformative implications of geometrical processes especially through light optics and projection so rhetorically advanced by Bettini
ANS: Guarini was aware of the transformative implications of geometrical processes, especially through light, optics and projection so rhetorically advanced by Bettini.

QUESTION: Fix punctuation: Found at an antiquarian in Osnabrck Germany
ANS:
Found at an antiquarian in Osnabrück, Germany.