could all与all could 有什么区别 哪个对?
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all that he could 这里的 all 是先行词 that 是关系代词 定语从句是 he could
eg: All that he could do is just waiting.
what he could 是what引导的名词性从句 可以把它看个一个名词
eg: He did what he could do to make her happy.
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现在式与过去式的区别 could语气比can委婉一些
could all 里all作副词放在形态动词的后面修饰couldall could 里all 是代词作主语
两个都对,就是看具体用法。
一般意义上讲:could 提前。是疑问句的标志。
could 在后。就是陈述句里的情态谓语动词。
雾水
计芸小儿:[答案] 一般意义上讲:could 提前.是疑问句的标志. could 在后.就是陈述句里的情态谓语动词.
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