根据句意及首字母或中文提示，完成下列句子中的单词。
1. Betty is the less p_____ of the two girls, so we all vote for the other girl.
2. Don't tell it to others. It's a s_____ between you and me.
3. The death (死亡) of his pet made him even s_____.
4. The boy is _____ (几乎) late for school again.
5. My sister always _____ (面带) a smile on her face.
6. They spent a lot of time _____ (练习) the piano every week.
7. Can you tell me about some national _____ (英雄) in Chinese history?
8. Is there any difference between _____ (英国的) English and American English.
9. He thinks one of his _____ (糟糕) subjects is Art.
10. I can see the birds far away because of my wonderful _____ (视力).