Duolingo Guidebook · English from Chinese

What were you doing at ten fifteen?
你十点十五在做什么？

I was shopping online at that time yesterday.
我昨天那个时候在网上购物。

What was she doing at that time?
她那个时候在做什么？

Emma was playing cards at that time.
艾玛那个时候在玩牌。

I tried to explain, but they were not listening.
我试图解释了，但是他们没有在听。

用英语谈论过去的事情时，无论主语是什么，都要在规则的动词后加 ‑ed。

现在	过去
I work in Asia. 我在亚洲工作。	I worked in Asia. 我在亚洲工作了。
We work in New York. 我们在纽约工作。	We worked in New York. 我们在纽约工作了。
She works in Australia. 她在澳大利亚工作。	She worked in Australia. 她在澳大利亚工作了。