People use the 311 call system to report__________.

李明正在看报纸。

你找到上周丢的那本书了吗?

那个博物馆是五年前建造的。

今天早上我没有赶上公共汽车。

Through the call system, citizens dial 3-1-1 to report non-emergency problems.

互联网在我们生活中变得越来越重要了。

Although the app isn' t yet available for sale, Chokwe is already looking for ways to improve it.

At that time, England had many colonies around the world.

So how did she become a doctor?

第(75)题答案选