题目内容：

    The Ministry of Industry and Information Technology has issued(颁发)commercial licenses(商用许可证) for 5G on June 6,2019,according to China Central Television.

Four major telecom carriers(电信运营商)- China Telecom， China Mobile， China Unicom and China Broadcasting Network-received the first batch of four 5G commercial licenses, said the report.

In May, Chinese companies own more than 30 percent of all essential patents(专利)relate to international standards for 5G, according to China Daily report.

The next-generation technology is expected to be at least 10 times faster than 4G, and its huge capacity(容量)to connect things will enable smart factories, self-driving vehicles and other ways, the report said.

China's big three telecom carriers are forecast(预计 )to spend $134 billion to $223 billion) in total on 5G network construction(建设) from 2020 to 2025, according to a report from the China Academy of Information and Communications Technology.

China is set to become the world's largest 5G market by 2025, with 460 million 5G users, according to a forecast by the Global System for Mobile Communications Association, an industry group.

1.How many 5G commercial licenses have been issued in China?

A.One B.Three C.Four D.Five

2.When licenses(商用许可证) for 5G

A.On May 15,2018 B.On June 6,2018 C.On May 15,2019 D.On June 6,2019

3.“ The next- generation tech＂ in Paragraph4  refers to(指的是)_________.

A.6G B.5G C.small children D.young people

4.What's the writer's purpose of writing this passage?

A.To make people less interested in 5G.

B.To explain why Chinese are so proud.

C.To offer information on 4G network construction.

D.To introduce China's new development of science and technology.