根据句意及所给中文完成以下句子。（20分）

1. I like those students who are careful with their lessons , _________ (例如) Mary , Linda.        

2. ( 事实上 ) ________ ,  the accident caused great damage and a loss of 2 lives.

3. Traveling by train , we visited __________ ( 大量， 许多) cities.        

4. Nowadays , the ____________ ( 受过良好教育的) people have more chances to get employed.     

5. She always ____________ ( 积极参加) all kinds of activities when she was at school.           

6. China ____________ ( 起重要作用 ) international relations.  

7. What about _________ ( 求助于) your teacher for help?           

8. For students , every chance should be __________ (利用) to study hard.

9. He fell off the bike and _________ (受伤了).         

10. He ________ ( 奉献 ) himself to his career and never returned to his homeland.