QUESTION: Fix punctuation: Display duration distance speed incline calories heart rate
ANS: Display: duration, distance, speed, incline, calories, heart rate

QUESTION: Fix punctuation: One must actually know the country in which recording is made to settle the matter
ANS: One must actually know the country in which recording is made, to settle the matter.

QUESTION: Fix punctuation: Diffuser in impact resistant opal polycarbonate PC
ANS: Diffuser in impact resistant opal polycarbonate (PC).

QUESTION: Fix punctuation: The text starts with Verba translatoris ie words of the translator Lydgate
ANS:
The text starts with "Verba translatoris" i.e. words of the translator (Lydgate).