用所给动词的适当形式填空。
1. The astronauts (take) good care of when they came back to the earth.
2. As we know that the whole world (connect) by computers.
3. Long long ago, there lived an old man (call) Paul near the sea.
4. People's lives (change) by inventions in recent 100 years.
5. In the future we will be able to do anything that can (do) on the earth.
6. Now the English language is widely (use) in the world.
7. The problem (discuss) last week is very important.
8. I'm going to Wuhan tomorrow. Do you have anything (take) to your mother?
9. When I got to his office, I (tell) that he had been out.
10. Coal can (use) to produce electricity for agriculture and industry.