we get a glimpse into the what is at the heart of the doctrine by reading from the beginning of the same chapter: "what shall we say then? shall we continue in sin that grace may abound? certainly not!

How would the previous sentence be correctly capitalized?
Answer: We get a glimpse into the what is at the heart of the doctrine by reading from the beginning of the same chapter: "What shall we say then? Shall we continue in sin that grace may abound? Certainly not!
fisheries biologists know this lake to hold no less than 19 different species of freshwater fish.

How would the previous sentence be correctly capitalized?
Answer: Fisheries biologists know this lake to hold no less than 19 different species of freshwater fish.
certification is undertaken by independent officially-approved certification bodies.

How would the previous sentence be correctly capitalized?
Answer: Certification is undertaken by independent officially-approved certification bodies.
sharapova had been a study in intensity throughout the fortnight in paris, happy to take on the mantle of favourite after serena williams' early exit, and in the end her will to win pulled her through as much as her ability.

How would the previous sentence be correctly capitalized?
Answer: Sharapova had been a study in intensity throughout the fortnight in Paris, happy to take on the mantle of favourite after Serena Williams' early exit, and in the end her will to win pulled her through as much as her ability.