单句语法填空，在空白处填入1个适当的单词或括号内单词的正确形式。
1. A great person is someone who ____________(devote) his/her life to helping others.
2. After____________（try）hard, I got a job in a gold mine.
3. We are determined to create an even_____________ (good) system.
4. ____________ (sad),although the Amber Room was considered one of the wonders of the world, it is now missing.
5. No one can imagine that the Amber Room would have such an_____________ (amaze) history.
6. In relief Daisy burst into _____________ (laugh).
7. Both the Winter and the Summer Olympics_____________ (hold) every four years on a regular basis.
8. Chopsticks originated in China，but they are ________(wide) used in many Asian countries.
9. He pushed and pulled with all his ________(strong)to move it.
10. I have a strong ________(believe)that one day Chinese students can buy these tickets，too.