QUES: There i a need for new visibility and openness in the otherwise closed city

correct the punctuation.

CORRECTED: There i a need for new visibility and openness in the otherwise closed "city".

QUES: Despite Porto Santos proximity to Madeira its vegetation is completely different

correct the punctuation.

CORRECTED: Despite Porto Santo's proximity to Madeira, its vegetation is completely different.

QUES: In the case when joint injuries or diseases occur the pain begins to limit the mobility of the patient and thus the comfort of his life is worse One of the most disturbing joints causeing much trouble is the knee joint

correct the punctuation.

CORRECTED:
In the case when joint injuries or diseases occur, the pain begins to limit the mobility of the patient and thus the comfort of his life is worse. One of the most disturbing joints, causeing much trouble is the knee joint.