Please capitalize where necessary: you have the security of a credit card guarantee (we've already validated the card), and collect the unpaid balance directly from your guest at the time of arrival.
A: You have the security of a credit card guarantee (we've already validated the card), and collect the unpaid balance directly from your guest at the time of arrival.

Q: it is already working its way through the system and will be upon us before we know it.

A: It is already working its way through the system and will be upon us before we know it.

Q: that's something the sitemap generator could (and probably should) support.
A: That's something the sitemap generator could (and probably should) support.

Problem: the attention of a person withdrawing from drug use can be very stuck on the body, and past incidents can be reactivated heavily.
Can you repeat this sentence, but capitalize it?
Answer: The attention of a person withdrawing from drug use can be very stuck on the body, and past incidents can be reactivated heavily.

Text: if your pc opens the dec file, but it's the wrong application, you'll need to change your windows registry file association settings. in other words, windows is associating dec file extensions with the wrong software program.

Correct capitalization: If your PC opens the DEC file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating DEC file extensions with the wrong software program.

Text: he began his studies in the 1930s by reading the first contributions to lattice theory which were by dedekind . dilworth himself remarked that although dedekind 's papers were excellent introductions to the subject it was unclear what his motivation had been.

Correct capitalization:
He began his studies in the 1930s by reading the first contributions to lattice theory which were by Dedekind . Dilworth himself remarked that although Dedekind 's papers were excellent introductions to the subject it was unclear what his motivation had been.