单词拼写。
1. Going to Australia for further education for two month is a very e______ and exciting experience for me.
2. It's good manners for every one of us to show r _______ for the parents and teachers.
3. He said that he r_______ saying those words at the meeting. He wished he could take them back.
4. Make sure that you keep your manager i_______ of the fresh development by e-mail.
5. Your success in passing the exam will be a great _______ (满意) to your parents.
6. Reducing the gap between the rich and the poor is one of the _______ (挑战) facing the government.
7. After ______ (毕业) from university, he went to China to study Chinese.
8. The man was badly injured, so he must be sent to the hospital _______ (立即).
9. Mr. Brown often ______ (鼓励) his children to solve problems by themselves.
10. He was shaking her hand before I could finish the ______ (介绍).