TOEFL Listening: ETS-TOEFL听力机经 - 4FWAB69KRO2GY568P$

Why was the student nervous during her recent piano performance? A. She was not used to the way her playing sounded in the new venue. B. She was not expecting such a large audience for a student performance. C. She was not able to use the piano that she had been practicing on. D. She had not spent enough time learning the piano piece she performed.