He has already finished his homework．Hehasn'tfinished his homeworkyet．题目和参考答案——青夏教育精英家教网—

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7．He has already finished his homework．（改成否定句）
Hehasn'tfinished his homeworkyet．

分析 --他已经完成他的作业了．
--他还没有完成他的作业．

解答答案：hasn't；yet．考查否定句．根据has finished可知，是现在完成时态．变否定句has后直接加not．already要改为yet，用于句尾．答案是hasn't；yet．

点评现在完成时态，由"have/has+过去分词"构成，否定句直接在have或has后加not．句中already要改为yet．此类题要结合语境，熟练掌握相关用法．

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