听短文,判断句子正(T)误(F)。 ( )1. John began to learn to play the piano when he was eight years old. ( )2. John was good at playing the piano. ( )3. The rests in the famous piece made John very excited. ( )4. The mother of the rich man knew a lot about music. ( )5. The rich man's mother thought John forgot how to play the piece.