did you和 have you 的用法区别
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did you和 have you 的用法区别
did you和 have you 的用法区别
did you和 have you 的用法区别
Did you 你以前做过…?have you 但现在为止你已经做过…?
前者是普通的以前干过什么,动作是不连续的#后者是以前干的连续的动作而且对现在有影响的
did you 是你做过 (过去时)have you 你试过(普通)