单词拼写。根据下列句子及所给汉语注释，写出空缺处各单词的正确形式（每空只写一词）
1. On _______ (平均), people who don't smoke are healthier than people who do.
2. For a goalkeeper, it's a great _______ (优势) to have big hands.
3. Many of his finest pictures are _______ (悬挂) in the national museum.
4. Sydney wants to become a _______ (律师) in the future.
5. He ______ (按下) the button and the doorbell rang.
6. Farmers are reporting a very big _______ (收成) this year.
7. I washed and _______ (剃须), then hurried out of the house.
8. John missed the game because of _______ (胃) pains.
9. Callie will start ______ (幼儿园) in September.
10. The old lady needs a few feather _______ (枕头) to make herself comfortable.
