Please capitalize where necessary: jesus said to him, 'friend, why are you here?' then they came and laid hands on jesus, and took him.
A: Jesus said to him, 'Friend, why are you here?' Then they came and laid hands on Jesus, and took him.

Please capitalize where necessary: in a 14 weeks study with oral administration via gavage of 300 mg vanillin/kg to rats, twice weekly, no adverse effects were observed.
A: In a 14 weeks study with oral administration via gavage of 300 mg vanillin/kg to rats, twice weekly, no adverse effects were observed.

Please capitalize where necessary: do you want to convert mp3 files to real media audio files? then mp3 to rm converter will be your best choice.
A: Do you want to convert MP3 files to Real Media audio files? Then MP3 To RM Converter will be your best choice.

Please capitalize where necessary: as for the organized debian booth, goodies and t-shirts will be sold there.
A:
As for the organized Debian booth, goodies and T-Shirts will be sold there.