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最佳答案：http://zhidao.baidu.com/question/918474107963381659.html?istorch=1&torchtoken=ee
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最佳答案：I am a student.Are you a student?No, i'm not.Yes, I am.
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最佳答案：1：Yes,i do No,i don‘t2:Yes ,i can No,i can’t3：Yes,she does No ,she doesn't4:Yes,
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最佳答案：-yes,you may-no,you can't/mustn't.
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最佳答案：must-Yes,you should./No,you needn't.need-Yes,you should/may/can/need./No.you nee
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最佳答案：Yes,I'd like to.
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最佳答案：hear fromin timeat the momenthurried overmake mistakesleads towere involved inas
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最佳答案：肯定句是；Yes,you must.否定句是NO,you needn't.
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最佳答案：手术台是医生的阵地,战士们还没有离开阵地,我怎么能离开自己的阵地呢?手术台是医生的阵地,战士们还没有离开阵地,我不能离开自己的阵地
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最佳答案：Must I do that?Yes,you must; No,you needn'tNeed I do that?Yes,you must; No,you n