题目内容

14．Technologyhas seen （see） some amazing developments in the last few decades．

分析 在过去的几十年中技术见证一些令人惊奇的发展．

解答 答案是has seen．本题考查动词时态；题干中in the last few decades表示"在过去的几十年中"，是与现在相联系的一段时间，与现在完成时连用，technology为抽象不可数名词，做主语谓语动词用单数；故答案是has seen．

点评 本题是要求用所给动词的适当时态填空，解题时要寻找题干中所提供的时态依据，同时关注特殊的时态结构．

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