Замените существительное с предлогом of существительными в притяжательном падеже The letter of Pete, the theatres of

The letter of Pete - the Pete\'s letter, the theatres of Moscow - the Moscow theatres, the questions of my son - my son\'s questions, the wife of my brother - my brother\'s wife, a meeting of students - a students\' meeting, the address of my friend - my friend\'s address, the flat of my sister - my sister\'s flat.