QUESTION: Fix punctuation: There are also synthetic oils produced from either mineral oil or natural gas and then modified to suit highly specific purposes
ANS: There are also synthetic oils produced from either mineral oil or natural gas, and then modified to suit highly specific purposes.

QUESTION: Fix punctuation: Transparency simplification of the Treaties and quality of Community legislation
ANS: Transparency, simplification of the Treaties and quality of Community legislation

QUESTION: Fix punctuation: this control will burn a number of audio files to a audio cd on the fly some of the supported formats are wave uncompressed and compressed mp3 mp2 atrac3 oggvorbis and more
ANS: this control will burn a number of audio files to a audio cd on the fly. some of the supported formats are wave (uncompressed and compressed), mp3, mp2, atrac3, oggvorbis, and more.

QUESTION: Fix punctuation: It is our hope that as many as possible will attend the conferences In that way we can make sure that there is wide support for the Capital of Culture project says Venstre
ANS:
"It is our hope that as many as possible will attend the conferences. In that way we can make sure that there is wide support for the Capital of Culture project," says Venstre.