单词拼写：根据句意和提示写出所缺单词。

1. The musicians were to play __________ (玩笑) on each other as well as play music.

2. Who will be in __________ of (管理) our class while Mr. Liu is away?

3. After graduating from college, we __________ (最终) got the chance to go abroad.

4. After ten days of hard work, he _________ (成功) in working out the problem at last.

5. I knew it would help us achieve our dream of making black and white people __________ (平等).

6. The house was __________ (埋) under ten feet of snow.

7. Although many Americans move a lot, they still __________ (辨别出) and understand each other's dialects.

8. Yesterday my parents bought me an __________ (电子) dictionary.

9. In relief, Daisy burst into __________ (笑声).

10. We are __________ (关心) about the child's safety.