1,did.用在“过去时态”.整句意思：它以前从哪里来的?
2,does.用在“一般现在时态”.整句意思：它从哪里来的?（日常生活通常用这个表达）
3,had.用在“过去完成时态”.整句意思：它以前从哪里来到这里的的?（少用）
4,这个句子本身是错句,因为"is"和"come"不可能同时作为谓语出现在一个句子里面.
只有说："Where is it from?" 或 "Where does it come from?"
问 Where__it come from?各种组合的意思
2个回答
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