题目内容：
By saying." Stevie soon graduated from toy instruments to real instruments", the authormeans that＿＿＿．
A． Stevie finished his study at a toy instruments school B． Stevie began to study in a real instruments school
C． Stevie gave up all his toy instruments and began to buy many real instruments
D． Stevie started to play real instruments
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答案解析：