单词拼写：根据句子意思及所给的中文或首字母提示写出正确的单词，每空一词。
1. We have music class                 (两次) a week.
2. Here is a                  (礼物) for you.
3. Thomas Edison had many               (发明)in his life.
4. If you take more exercise, you will be much              (健康) than before.
5. Are you sure it’s nothing                 (严重的)?
6. The children in China live              (幸福).
7. We must learn how to get on w              with others.
8. I g              up at haft past six last Sunday.
9. In Changsha it's very hot in summer and very cold in w              .
10. Let’s work hard and try to b                a great and strong country.