1. That the earth moves around the sun is known to all.
It is known to all that the earth moves around the sun.
What is known to all is that the earth moves around the sun.
2. When and where the house will be built is still being discussed.
3. China is no longer what it used to be. 中国不再是曾经的样子了。
4. Whoever is elected should do what he can to help the people.
5. I really wondered what it was that made him so angry.
6. It remains to be seen whether you are right.你是否是对的还拭目以待。
7. That’s because he didn’t understand me. 那时因为他不理解我。
That’s why he got angry with me.那正是他对我生气的原因。
The reason why I was sad was that he didn’t understand me.我难过的原因是他不理解我。
8. You’ve no idea how important it is for us to learn English well.
9. After years of hardship, they finally reached what is called America now.
10. What they have in common is that they are all independent.他们的共同之处是他们都很独立。
11. What used to be considered impossible has now turned into realities.
12. Word came that our team won the football match.消息传来，我们队赢了足球比赛。
13. University graduates have no idea (of) what it takes to start a company.