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最佳答案：肯定回答以及否定回答Yes'you must,No you needn't
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最佳答案：一般疑问句：Are you listenign to the music?肯定回答：Yes, I am.否定回答：No, I'm not.
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最佳答案：-Doesn't he like coffee?-Yes,he does.不,他喜欢.-No,he doesn't.是的,他不喜欢.
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最佳答案：？？
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最佳答案：现在完成时一般疑问句结构：Have/Has+主语+动词过去分词+其它肯定回答：Yes,+主语+have/has.否定回答：No,+主语+haven't/hasn
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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
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最佳答案：1.Tom is a lovely boyTom isn't a lovely boyIs Tom a lovely boy?Yes,he is/No,he i
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最佳答案：1 Students have bicycles(bikes).Students haven't bicycles(bikes).[美]/Students do