do的过去式形式

What time did you get here?

你什么时候到达这儿的`？

Just out of interest, how much did it cost?

我只是好奇问问，这个花了你多少钱？

You did well to sell when the price was high.

你在价钱高的时候出售，真明智。

One major problem did present itself, though.

不过，确实出现了一个重大问题。

What time did you get back last night?

你昨晚什么时候回家的？