Please capitalize where necessary: even totally toothless upper and lower jaws can be equipped with teeth using implants.
A: Even totally toothless upper and lower jaws can be equipped with teeth using implants.

Q: before you can open a usr file, you'll need to figure out what kind of file the usr file extension refers to.

A: Before you can open a USR file, you'll need to figure out what kind of file the USR file extension refers to.

Q: no brand can control, for example, the discussions that consumers have among themselves outside of official company channels.
A: No brand can control, for example, the discussions that consumers have among themselves outside of official company channels.

Problem: let us use our intelligence and learn these meanings...
Can you repeat this sentence, but capitalize it?
Answer: Let us use our intelligence and learn these meanings...

Text: if it cannot be proved that the candidate died as a martyr, then the cause must proceed tedious down the road of investigating virtues practiced to heroic degree as well as proving one miracle beatification and one for canonization as heretofore described.

Correct capitalization: If it cannot be proved that the candidate died as a martyr, then the cause must proceed tedious down the road of investigating virtues practiced to heroic degree as well as proving one miracle beatification and one for canonization as heretofore described.

Problem: how it influences the cycle of the vines in champagne, i guess is still not very clear. that is until science puts undeniable proof on the table.
Can you repeat this sentence, but capitalize it?
Answer:
How it influences the cycle of the vines in Champagne, I guess is still not very clear. That is until science puts undeniable proof on the table.