Please capitalize where necessary: use up and down arrow keys to move and space key to a salt front.
A: Use up and down arrow keys to move and SPACE key to a salt front.

Please capitalize where necessary: this latter point is very important, which determines the characters in his works are not only independent existed objects, but also are rational and emotional objects that perceived by the artist.
A: This latter point is very important, which determines the characters in his works are not only independent existed objects, but also are rational and emotional objects that perceived by the artist.

Please capitalize where necessary: on saturday we can expect cloudless weather. morning temperatures will be around 24 c. during the day they will reach a maximum of 31 c. low temperatures at night will be around 22c. we have weak easterly winds.
A: On Saturday we can expect cloudless weather. Morning temperatures will be around 24 C. During the day they will reach a maximum of 31 C. Low temperatures at night will be around 22C. We have weak easterly winds.

Please capitalize where necessary: there are always deficiencies in certain nutrients, primarily those which take part in sugar metabolism such as zinc, magnesium, chromium, manganese, and other minerals, as well as vitamins primarily of the b vitamin group.
A:
There are always deficiencies in certain nutrients, primarily those which take part in sugar metabolism such as zinc, magnesium, chromium, manganese, and other minerals, as well as vitamins primarily of the B vitamin group.