QUES: CMC Festival Croatian pop and rock music festival that takes place in June

correct the punctuation.

CORRECTED: CMC Festival, Croatian pop and rock music festival that takes place in June.

QUES: Images University of Copenhagen Botanical Garden Denmark photos of Denmark

correct the punctuation.

CORRECTED: Images - University of Copenhagen Botanical Garden, Denmark, photos of Denmark

QUES: This software works successfully on Mac and Windows computer

correct the punctuation.

CORRECTED:
This software works successfully on Mac and Windows computer.