Please capitalize where necessary: a number of these sketches and drawings have inevitably been turned into completed and signed works. if you should happen to know any of these, please let me know.
A: A number of these sketches and drawings have inevitably been turned into completed and signed works. If you should happen to know any of these, please let me know.

Q: use old vcr here.

A: Use old VCR here.

Q: 1 month ago 17:35 xhamster mom, japanese mom, japanese
A: 1 month ago 17:35 xHamster mom, Japanese mom, Japanese

Problem: when required, the robotic mower recharges itself at the charging station. its easy-to-place boundary wire shows the r50li where to mow.
Can you repeat this sentence, but capitalize it?
Answer: When required, the robotic mower recharges itself at the charging station. Its easy-to-place boundary wire shows the R50Li where to mow.

Text: what single thing rules?

Correct capitalization: What Single Thing Rules?

Q: the operational costs are still high due to manning requirements.

A:
The operational costs are still high due to manning requirements.