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最佳答案:原形,过去式,过去分词play,played,playedstudy,studied,studiedrain ,rained ,rainedfly ,flew
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最佳答案:原 过去式 过去分词 现在分词 复数cry cried cried crying crieshave had had having havesfall fell
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最佳答案:show shownprefered preferedcost costwrote writenwent gonetook takenflew flownsaw
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最佳答案:1.began begun 2.sent sent 3. listened listened 4. went gone 5. taught taught 6.