中式口语纠错:Bebusydoingsomething

【中文这样说】

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我哥哥一直在忙着准备他的期末考试.

【英文对比翻译】

Chinese Style My brother has been busy in preparing for his final examination.
American Style My brother has been busy preparing for his final examination.

Be busy doing sth为固定用法,中间不应加in