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最佳答案：can could 能力（体力,智力,技能）允许或许可（口语中常用）可能性（表猜测,用于否定句或疑问句中）Yes,…can.No,…can’t.may 可以（问
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最佳答案：答：标个号哈：1.I wasn't at the shop Were you at the shop?-Yes,I was.No,I wasn't Where
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最佳答案：weren,t
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最佳答案：Does he have to leave early?why does he have to leave early?he did not have to l
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最佳答案：肯定Yes,I'd love to.That's a good idea.Why not?否定Sorry,...I'd love to,but...
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最佳答案：He comes from Germany.提问:Does he come from Germany?No,he does not come from Germ
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最佳答案：1.did the sun set at twenty past seven?the sun didn't set at twenty past seven.2
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最佳答案：yes,you must.no,you needn't.
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最佳答案：1.Yes,you must.No,you need't.一般没有用need提问的2.be suppose sb.do sth.3.没有Who答案吗?是who才
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最佳答案：肯定回答 否定回答can can can'tcould can can'tmay can/may may not/ mustn'tmight can/might