That's a book.

那是一本书。

I'm the youngest.

我最年轻

At noon I had lunch with a friend of mine.

在中午我与一个朋友一起吃了午餐。

Can you tell me where Peach Street is?

你能告诉我Peach街在哪儿吗？

Let's go out to the airport. The plane landed ten minutes ago.

让我们去机场。 飞机在10分钟前降落。

What did the doctor say?

医生说了什么吗？