题目内容
【题目】打字机已经被电脑取代。
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【答案】Type writers have been replaced by computers.
【解析】
根据句意可知时态用现在完成时的被动语态。type writers打字机;be replaced by被……取代。现在完成时的被动语态结构是have/has been done。将词汇套用进去,故答案为Type writers have been replaced by computers.
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