Please capitalize where necessary: the threshold and entrance are what form the first impression visitors and customers have of your company.
A: The threshold and entrance are what form the first impression visitors and customers have of your company.
Q: wi-fi internet 1,00 € per day.

A: Wi-Fi internet 1,00 € per day.
Q: if a driver does not start the race, all bets for this driver become invalid.
A: If a driver does not start the race, all bets for this driver become invalid.
Problem: the hand ranks button will pop-up a list of all the possible hand values ranked from highest to lowest.
Can you repeat this sentence, but capitalize it?
Answer: The Hand Ranks button will pop-up a list of all the possible Hand values ranked from highest to lowest.
Text: acute stress is actually a condition of "combat readiness"; this mechanism was a very appropriate arrangement until the lifestyle of modern man became popular.

Correct capitalization: Acute stress is actually a condition of "combat readiness"; this mechanism was a very appropriate arrangement until the lifestyle of modern man became popular.
Please capitalize where necessary: decorate the background and dress up her in a pretty way.
A:
Decorate the background and dress up her in a pretty way.