问题
_______ the age of four, he started to learn the piano.[ ]
A: On
B: With
C: At
D:In
B: With
C: At
D:In
正确答案是：
同类题型
Do you mean that he should prepare for his exam one year in advance? –Sure. Anyway,____.
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What are you doing now? –I’m _____,Mum.
Mr. Li said he would show the students _____ New York City, which is famous _____ the world. [ ]
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