Ever pass by someone in a hallway, at a store, or some other random place and can't understand a word they are saying? This is caused by the differences in languages. 98% of the students here know and can speak English. They choose to speak in other languages so others do not understand what they are saying about. A particular person, group, or activity. For others sometimes they slip into their native tongue.
98% Speak English
78% Can say a few words in another language
45% can have a true conversation in that language