完型填空。
"Where is the university?" This is a question that many visitors to Cambridge(剑桥)ask. But no one can give them a ____answer, for there is no wall to be found ____ the university. The university is the city. You can find classroom buildings, ____, museums and offices of the university all over the city. And most of its members are the students and_____ of the thirty-one colleges(学院).
Cambridge was already a___ town long before the first students and teachers arrived 800 years ago. It grew up by the river Granta, and the river was once _____ the Cam. A_____ was built over the river as early as 875，so the town got its name "Cambridge".
In the fourteenth and fifteenth centuries more and more land was used for college buildings. The town grew much _____ in the nineteenth century after the opening of the railway in 1845.Cambridge became a______ in 1951 and now it has a population of over 100,000. Many young students in other countries____ to study at Cambridge.