Are you ten?

你10岁吗？

No, I think it's his cup.

不，我想那是他的杯子。

Oh, that's my father!

噢，那是我爸爸。

It's eight thirty.

八点三十。

I want to take some books to the classroom. Could you help me, please?

我想把一些书拿到教室里，你能帮个忙吗？

What are you doing?

你在干什么？