question: seven berlin theatres were lead by the eastern jews, the brothers rotter, of who the jew arnold zweig stated: "under the leadership of these newcomers the litterary theatre has been turned into a mere and crude business."
Capitalize this past sentence correctly.
A: Seven Berlin theatres were lead by the Eastern Jews, the brothers Rotter, of who the Jew Arnold Zweig stated: "Under the leadership of these newcomers the litterary theatre has been turned into a mere and crude business."

question: seen as a whole, these become colourful and expressive works on paper, often incorporating social commentary in the form of written fragments of text and exclamations.
Capitalize this past sentence correctly.
A: Seen as a whole, these become colourful and expressive works on paper, often incorporating social commentary in the form of written fragments of text and exclamations.

question: dmintf.dll device can't work/no sound: actually, in most cases device problem is because of .sys files.
Capitalize this past sentence correctly.
A: dmintf.dll device can't work/No sound: Actually, in most cases device problem is because of .sys files.