Please capitalize where necessary: the people read it, and were delighted with the comfort it brought them.
A: The people read it, and were delighted with the comfort it brought them.

Q: like other adenocarcinomas, salivary gland adenocarcinoma is usually found in older animals, around 10-12 years of age.

A: Like other adenocarcinomas, salivary gland adenocarcinoma is usually found in older animals, around 10-12 years of age.

Q: the 21.th virtually all the adult kittiwakes left the breeding grounds and let their youngs alone back.
A: The 21.th virtually all the adult kittiwakes left the breeding grounds and let their youngs alone back.

Problem: and for even more flexible use, one of the safety glass shelves in the rb 492/rb 472 is asymmetrically divided.
Can you repeat this sentence, but capitalize it?
Answer: And for even more flexible use, one of the safety glass shelves in the RB 492/RB 472 is asymmetrically divided.

Text: the draco constellation (the dragon) which winds around the celestial well and bite himself in the tail, was understood as a reflection/figurative echo of the retort with its entwined radiator tubes.

Correct capitalization: The Draco constellation (the Dragon) which winds around the celestial well and bite himself in the tail, was understood as a reflection/figurative echo of the retort with its entwined radiator tubes.

Problem: in 1922 his parents moved from smyrna to athens and alexander moved with the family to complete the last three years of his secondary schooling there.
Can you repeat this sentence, but capitalize it?
Answer:
In 1922 his parents moved from Smyrna to Athens and Alexander moved with the family to complete the last three years of his secondary schooling there.