问题描述：
My uncle often goes to work ( ),because he tainks it`s healthy way.
My uncle often goes to work ( ),because he tainks it`s healthy way.
A..by bike B.by taxi C,by motocycle
My uncle often goes to work ( ),because he tainks it`s healthy way.
A..by bike B.by taxi C,by motocycle
问题解答：
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