Please capitalize where necessary: “this is probably the most basic security measure … make them understand what you’re trying to achieve.”
A: “This is probably the most basic security measure … make them understand what you’re trying to achieve.”
Q: before buying a vacuum cleaner karcher ds 5600 specify all your options, equipment, appearance and warranty from the seller. please note that we are not engaged in the sale and manufacture warranty.

A: Before buying a vacuum cleaner Karcher DS 5600 specify all your options, equipment, appearance and warranty from the seller. Please note that we are not engaged in the sale and manufacture warranty.
Q: normal & difficult airway
A: Normal & Difficult Airway
Problem: "why, those trees are the birds' heritage by this time, so let them keep them, my good larsen!" larsen was the gardener's name, but that is of very little consequence to this story.
Can you repeat this sentence, but capitalize it?
Answer: "Why, those trees are the birds' heritage by this time, so let them keep them, my good Larsen!" Larsen was the gardener's name, but that is of very little consequence to this story.
Text: finally, you can now discover everything you need to know about your bpk file... instantly!

Correct capitalization: Finally, you can now discover everything you need to know about your BPK file... instantly!
Text: 19 and unto eber were born two sons: the name of the one was peleg; because in his days the earth was divided: and his brother's name was joktan.

Correct capitalization:
19 And unto Eber were born two sons: the name of the one was Peleg; because in his days the earth was divided: and his brother's name was Joktan.