question: the background and subject of the oil painting work is mainly black in large, but artist chen yifei applied with the contrast of light and colors smartly, challenge the peak of techniques of realistic painting. he uses classical and ultra-realism combined techniques, and integrated delicate and nuanced eastern exoticism, thus to perform the elegant moods of the female flute player naturally and vividly.
Capitalize this past sentence correctly.
A: The background and subject of the oil painting work is mainly black in large, but artist Chen Yifei applied with the contrast of light and colors smartly, challenge the peak of techniques of realistic painting. he uses classical and ultra-realism combined techniques, and integrated delicate and nuanced eastern exoticism, thus to perform the elegant moods of the female flute player naturally and vividly.

question: lift one arm above your head and bend the spine to the side, until you feel the stretch on the side of your body.
Capitalize this past sentence correctly.
A: Lift one arm above your head and bend the spine to the side, until you feel the stretch on the side of your body.

question: it is now quite common that you can download data as csv files.
Capitalize this past sentence correctly.
A: It is now quite common that you can download data as csv files.