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最佳答案:not没过去式 knew washed used looked broke said
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最佳答案:plant planted plantedproduce produced producedplan planned plannedinvite invited
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最佳答案:sink sank sunkdisplay displayed displayeduse used usedpretend pretended pretende
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最佳答案:Has TalkedHas SnowedHas dancedHas likedHas used
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最佳答案:一般现在事就是这样,单三:means,tells,rings,runs,uses,falls,hears进行时:meaning,telling,flying,r
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最佳答案:used to do 过去常常 可与表状态的动词be连用,而would do sth 不能与be连用be used to do sth=be use for d