根据句意及母提示填入适当的单词。
1. The foreign athlete's p_____ is so good that I can't believe he is from South Korea.
2. Sorry, I can't follow you. Can you speak more s_____?
3. Please be more careful, or you'll make more m_____.
4. Though Jet left his friends two years ago, he couldn't forget the f_____ between them.
5. As a s_____, Xu Sanduo knows he must try his best to do everything well. So he succeeded at last.
6. I r_____ I had to work harder to get good results.
7. Don't be a_____ of making mistakes, because everyone makes mistakes.
8. How will you d_____ with these old clothes?
9. It's not easy to s_____ such a difficult problem.
10. We should try our b_____ to learn English well.