大口 隆准 日角:改同义句

来源：百度文库 编辑：中科新闻网 时间：2024/05/09 17:41:31
i have been studying english for five years.
i have been studying english________five years______.

since ago

i have been studying english for five years.
i have been studying english____since____five years___ago___.

since ago

since ago 我正好是初二 刚学过

since ago

since，ago

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