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最佳答案：must:yes,you must. no,you needn't.should:yes,you should. no,you needn't.need:Yes
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最佳答案：肯定回答是yes,you must否定回答是no,you needn't or no,you don't have to.
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最佳答案：must 开头的回答,肯定用Yes,you must.否定用No,you needn’t.need 开头的回答,肯定用Yes,you need.否定用No,yo
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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：may I do...Yes,you may.No,you can't/ mustn't.Can I do sth?Yes,you can.No,you can
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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：C.musthave to 必须，不得不，表示由客观情况定的must 必须 表示主观因素
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最佳答案：1、在回答must开头的一般疑问句时,肯定回答用must,否定回答用needn't或don't have to.如：1)—Must I finish my ho
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最佳答案：May提问，肯定回答用can,否定用can't
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最佳答案：can:----yes,you can----no,you can'tmay:----yes,you must----no,you can'tmust:做推测讲