Please capitalize where necessary: any language requirements should be for one purpose only to ensure that you know enough to work in your chosen profession in your new country.
A: Any language requirements should be for one purpose only to ensure that you know enough to work in your chosen profession in your new country.

Q: on saturday it will be fair until afternoon. in the afternoon we can expect cloudy, but mainly dry weather. the night will bring variable cloudy and clear weather.

A: On Saturday it will be fair until afternoon. In the afternoon we can expect cloudy, but mainly dry weather. The night will bring variable cloudy and clear weather.

Q: don't by any wilful, deliberate, reckless or unlawful act interfere with the work of another developer or jeopardize the integrity of data networks, computing equipment, systems programs, or other stored information.
A: Don't by any wilful, deliberate, reckless or unlawful act interfere with the work of another developer or jeopardize the integrity of data networks, computing equipment, systems programs, or other stored information.

Problem: that is why we need to be saved.
Can you repeat this sentence, but capitalize it?
Answer: That is why we need to be saved.

Text: choice of guidance over video, guidance only or video only

Correct capitalization: Choice of guidance over video, guidance only or video only

Problem: as a regent it was sten sture's duty to reconcile the country and not to reopen 18-year old wounds.
Can you repeat this sentence, but capitalize it?
Answer:
As a regent it was Sten Sture's duty to reconcile the country and not to reopen 18-year old wounds.