Danish can be a frustrating language to learn. Most Danes speak fluent English, however, making the language barrier close to nonexistent.
Oral exams are a normal thing at CBS. That can be unnerving for students who are not used to that. But there is no need to worry, the censors are really nice.
Walking around campus, you hear languages from all over the world. The diversity at CBS can give something extra to discussions and group work.