题目内容：

    To control the spread of covid-19 (新冠病毒), the Chinese government has closed schools for months. But "study must not stop", says the government. Under its orders, the country's biggest online learning begins.

There are different ways to make the online learning go on smoothly. The online teaching and learning are achieved by using video-meeting apps such as Dingtalk by Alibaba, an online company, and Ke-tang by Tencent, another online company. " ▲  " says Yue Qiu, a teacher in Beijing.

If internet is not good all the time, students can download, audio-files and homework. In poor areas, where some families don't have internet, teaching by television makes learning possible. Since February 17th China Education Network, a state-run service, has made classes on TV every weekday from 8 am to 10 pm. All important subjects are covered.

On the other hand, worries are shared by students in the final year of the secondary school. Many parents also feel upset that online learning is not as good as traditional learning. Hou Kaixuan, who is going to take part in the entrance examination to the universities looks forward to the reopening of his school. " ▲  " he says. Not all his classmates are like him. Kaixuan has noticed that some of his classmates study just as hard at home as in school.

"  ▲  " says Mr. Yue, a teacher in Beijing. That is because China's online learning is reducing the distance between teachers and students. Teachers who were not willing to give out their contact details on WeChat, now depend on it to answer students’ questions. If he is right, such a change could be one of the few happy things during this period.

1.What is the article mainly about?

A.Technology. B.Education. C.Literature. D.History.

2.What's the correct order of the missing sentences?

1. I’m simply more active in a traditional classroom

2. Slow internet speeds at home are no excuse for not studying

3. When schools finally reopen, the teacher-student relationship may be different

A.3→1→2 B.2→3→l C.3→2→1 D.2→1→3

3.Which of the following is true?

A.Parents are not satisfied with their kids' online learning at all.

B.Students lose the chance to study because of the poor internet.

C.Teachers find their relationship with students remains the same.

D.Companies like Alibaba offer online service to online education.