does是do的单三形式，do的过去式是did，故does的过去式是did。do的含义有：做，干，办(某事)；(以某种方式)做；行动；表现；(问询或谈论时用)进展，进行等。

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例句：

She did extraordinarily well.

她干得特别好。

"Did you?" she asked earnestly.

“你呢？”她严肃地问。

Whereabouts did you find it?

你在哪儿找到它的？

Did everything go smoothly?

一切进行得都顺利吗？

Did you take your medicine?

你吃过药了吗？