现在完成时（Present perfect）过去发生并且已经完成的动作对现在造成影响或后果，过去某一时间开始并一直持续到现在并且有可能还会持续的动作或状态。
一般过去时表示过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为；过去主语所具备的能力和性格。...
一些有关现在完成时的问题请问What have you done?与What did you do?的区别还有It ha
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相关问题
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what have you done与what did you do的区别
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what you have done和what have you done什么区别
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what do you do 和 what did you do 区别
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请问:what you owned.与what you have owned区别?
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when did you do和what did you do 区别
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what did you expect 与what do you expect 有什么区别吗?
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what did you do 与what were you doing
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——done for us?A .what do you think he has B.what do you thin
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what did you do this morning?和what did you have this morning
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关于现在完成时1.Have you _______ what you want to do after school?2