根据首字母提示，写出各单词的正确形式。
1. Peter is our monitor and he never tells lies, we all think he is h_____.
2. There's n_____ in the bottle. It's empty.
3. —How old are you, Mrs Green?
—Oh, sorry. It's a s_____.
4. Many visitors come to Tian'anmen S_____ every day.
5. Xiao Wang is a top student. He always answers the questions c_____.
6. My cousin always w_____ a smile on his face and looks happy.
7. I feel really u_____ when I sit on the old sofa.
8. —I am very n_____ when I speak in class.
—There's no need to be afraid next time.
9. —I want to be a doctor in the f_____.
—So do I .
10. I don't know what to do? Can you give me some a_____.
11. Liu Xiang is one of the best r_____ in China.