单句改错。
1. They are college students come from Xiamen College. __________
2. During their summer holiday they had an excited experience. ___________
3. The children stood at the doorway watched the guests coming in. ___________
4. His approach for the problem is special and proves good. __________
5. I don't know his address, nor I care. _________
6. Who is possible to come to our party this evening? _________
7. She now often listens to the recorder to improve her speaking English. _________
8. In order to avoid to make mistakes in his composition, he often refers to a dictionary. _________
9. The boy was late and he came to run to the school. _________
10. We were all nervous about the approached examinations. _________