3. 将介词into改为to。refer to为固定短语，意为“提到，谈到”。

2. 将surprises改为surprise。to one’s surprise为固定短语，意为“使某人吃惊”。

1. 将介词for改为to。link to为固定短语，意为“把……和……联系起来”。

10. If you look on the British countryside, you will find evidence of all these invaders.

Keys:

9. In copying this paper, be careful not to leave off any words.

8. Electric train have not taken place of steam trains in England.

7. Stealing money from others is legal.

6. Although the wind blew hard, but they went on climbing Mount Tai.

5. The man calling Zhang Hua went to the USA this summer vacation.

4. They hoped to see the problems settled peaceful.