一、根据句意及首字母提示补全单词。
1. It's p to say "thank you" when others help you.
2. He is an e in computer science, so we can ask him for help.
3. The farmers grow many kinds of p here, like apples and wheat.
4. We will arrive at the a at 8 o'clock tomorrow morning. Many planes take off and land there every day.
5. He carried the heavy bag on his s and walked upstairs slowly.

1. proper 2. expert 3. products 4. airport 5. shoulder

二、根据汉语意思完成句子，每空一词。
1. 如果你有任何问题，你可以在线搜索以获得答案。
If you have any questions, you can for an answer.
2. 吸烟对我们的健康有害。
Smoking our health.
3. 你最好把每天使用云服务的情况做记录。
You'd better of using cloud services every day.
4. 他发现了一些问题后，立即向管理员报告。
After he found some problems, he immediately the problems the administrator.

1. search; online
2. is harmful to
3. keep a record
4. reported; to

三、根据短文内容,选择能填入空白处的最佳选项(其中有一项为多余选项)。
In recent years, with the development of technology, many popular apps have been produced. These days, an app has attracted great attention. 1. Douyin first appeared in 2016. Now it is many people's favorite app, especially among the young.
With Douyin, users can record videos, edit(编辑) them and share them online. It is very easy and interesting. 2. What's more, it's a fun way to spend our free time by looking through all kinds of videos.
3. The app also has bad things. On the one hand, some people spend long hours on the app, which is harmful to their health. 4. Such things are unsuitable and meaningless.
In my opinion, Douyin should check the videos before they are uploaded(上传). 5. In many parents' opinion, Douyin is not good for teenagers and we should not use it at all.

A. On the other hand, users can also find some bad things on the app.
B. However, every coin has two sides.
C. In this way, it can help keep a healthy environment for its users.
D. We can share our videos with friends with just a tap on the mobile phone screen.
E. I think it is good for us.
F. It is Douyin, a video sharing app.

1. F 2. D 3. B 4. A 5. C