也就是说,could是委婉用词,在本句并非过去式
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本回答被提问者采纳...i can solve it 中从句里的can为什么不能用could
主句中的 could 是用来向对方请教时说的(主语是 you),这不是过去式,而是虚拟语气形式,这样可使语气很客气,很有礼貌。而宾语从句中的 can 是指我自己说的(主语是 I ),既然是说自己,就不必客气和礼貌了,这就像自我介绍时,只说“我是张三”就行了,不必说“我是张三先生”。
...i can solve it 中从句里的can为什么不能用could
tell me how can i get to the theater?吗 原则上说是可以的 但一般情况下用can比较好 而且根据你的oral english来看也是can比较适合
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