问题描述：
改同义句He bought the bike in 2007
句He bought the bike in 2007
He 【】【】the bike since 2007
He 【】【】the bike since 2 yeas ago
句He bought the bike in 2007
He 【】【】the bike since 2007
He 【】【】the bike since 2 yeas ago
问题解答：
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