5 . 增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
1. There are more than one kind of book in our school library.
2. Why not to join some clubs?
3. It’s not easy to speak English as fluent as native speakers.
4. Luckily, I found my classmates easy to get along.
5. Since then, we never met each other.
6. Thank you for giving me some advices.
7. When we’re in danger, we should stay calmly before help comes.
8. To be hoest, I have no difficulty make friends.
9. It’s no pleasure study all the time without relaxation.
10. My camera doesn’t work. I should have it repairing.

10 . 单句改错
1. Frederick William I , the king of Prussia , could never have imagined that his greatest gift to the Russia people would have such an amazed history.
2. The Amber Room was first designed as the palace of Frederic I.
3. It was also a treasure decorated with gold and jewels, that took the country's best artists about ten years to make.
4. However, the next king of Prussia, Frederick William I, for whom the Amber Room belonged, decided not to keep it.
5. There is no doubt whether the boxes were then put on a train for Konigsberg.
6. After that, what happened to the Amber Room remain a mystery.
7. So an opinion is not a good evidence in a trial.
8. There is as much competition among countries to host the Olympics than to win Olympic medals.
9. The old rules and regulations for the athletes will replaced with new ones.
10. In 2005 Eric competed with swimming and long jump.