Fill in the preposition in the text:
The University............Oxford was the first university to be established.........Britain. Dating........the 12th century, it is organised as a federation...........colleges which are governed...........their own teaching staff knows as "Fellows". The oldest college, University College was founded...........1249. Today Oxford University is made up.........39 separate colleges,...............which one is ................women students only, and the rest take both men and women.