question: if your pc opens the dcp file, but it's the wrong application, you'll need to change your windows registry file association settings. in other words, windows is associating dcp file extensions with the wrong software program.
Capitalize this past sentence correctly.
A: If your PC opens the DCP file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating DCP file extensions with the wrong software program.

question: it was these questions that 300 citizens from all over the region of southern denmark debated and answered for the politicians from the regional council.
Capitalize this past sentence correctly.
A: It was these questions that 300 citizens from all over the Region of Southern Denmark debated and answered for the politicians from The Regional Council.

question: but no one will imagine that he accomplished it. when that was over, the tailor took out a violin from beneath his coat, and played a piece of it to himself.
Capitalize this past sentence correctly.
A: But no one will imagine that he accomplished it. When that was over, the tailor took out a violin from beneath his coat, and played a piece of it to himself.