题文
He________to play________before he was 11 years old．
| A．had learned；piano |
| B．had learned；the piano |
| C．has learned；the piano |
| D．learns；piano |
He________to play________before he was 11 years old．
| A．had learned；piano |
| B．had learned；the piano |
| C．has learned；the piano |
| D．learns；piano |
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