I began to learn Japanese----2005 and I have been learn ing it for 6 years..A in B since 为什么?

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• I began to learn Japanese----2005 and I have been learn ing it for 6 years..A in B since 为什么?
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• I began to learn Japanese----2005 and I have been learn ing it for 6 years..A in B since 为什么?
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