Did she see the doctor?为什么用did急!

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Did she see the doctor?为什么用did急!
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Did she see the doctor?为什么用did急!
Did she see the doctor?为什么用did
急!

Did she see the doctor?为什么用did急!
did 是do的过去时态
说明这个句子发生的场合是过去的某个时间