question: ufo's appearance occurs regular in a cyclical and a predetermined sequence ;
Capitalize this past sentence correctly.
A: UFO's appearance occurs regular in a cyclical and a predetermined sequence ;

question: today, it forms the basis for a system which can do far more than communicate with visitors and release doors.
Capitalize this past sentence correctly.
A: Today, it forms the basis for a system which can do far more than communicate with visitors and release doors.

question: preliminary list of selected results achieved during the danish presidency of the council | eu2012.dk
Capitalize this past sentence correctly.
A: Preliminary list of selected results achieved during the Danish Presidency of the Council | eu2012.dk