虽然两句话最终意思都一样,但部分单词充当语句成份不一样. 就像: I'm from china I comes from china. Where is he from和 Where does he come from 第一句Where is he from? from跟在be 动词 is 之后作表语.而he 是 第三人称单数,故be 动词用 is. 也就是说is 在这里是做系动词. 而不可能用 are . 而 Where does he come from? 中, come from 构成一个动词短语.而主语he 是第三人称单数,可又出现在疑问句中,does 充当 come from 的助动词, 故用 does.
答：Where is she from的同意句是－where does she come from详情>>
