would和could在疑问句中怎么使用would you could you 如何选择

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• would和could在疑问句中怎么使用would you could you 如何选择
• 选择中if you had listened to the doctor ,you -------all right now.答案是would be为什么不是would have been ,与过去的事实相反,从句中不应该用had +done形式吗?这又怎么解释与过去事实相反 主句 Should\would\could\might+have done（动词过去分词） 从句 Had+done(过去分词)用虚拟语气的知识解答.
• would和could在疑问句中怎么使用
• 我遇到了一个问题,我们的客户说他们使用我们的cover glass 和malinol.但是放一两天后在显微镜下会出现像雪花装的东西I have a problem.Our customer said they used our cover glass(24*50) and malinol,but it would be appear shaped like snow（*） with a microsope after 1 or 2 days.Could you kindly help me to find the reason.
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