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. _________