阅读下面的材料,根据要求完成问题。
Keeping on__________
The novel coronavirus is spreading (传播)around the world. It causes trouble in many countries. But it doesn't stop students from learning.
Do you take any online classes on DingTalk? Many students do. There are over 140,000 schools and 120 million students in China using the app. About 3.5 million teachers turn into anchors. With the help of DingTalk, you can take classes, do homework and even take tests.
Now it seems that DingTalk is going all over the world. Because of the virus, many countries close schools, including the US, the UK, Italy, France, and Japan. Over 700 million students cannot go to school. To help them study at home, UNESCO (联合国教科文组织) introduces DingTalk to the whole world. According to UNESCO, DingTalk is a powerful digital-learning tool (有力的数字化学习工具) when schools are closed.
In China, some students think the app is helpful, because they can keep learning at home. But some students don't like online classes and give the app a poor rating (差评). Will students in other countries be happy with the app? We may soon find out.