根据下列句子及所给的汉语注释，在句子右边的横线上写出空缺处各单词的正确形式。

1．The boy is too ___________(紧张) to speak in front of others.                     1.__________

2．She hopes to be a __________(音乐家) in the future.                                  2. _________

3．The athletes___________(承诺) that they will compete fairly.                       3.__________

4．It is our greatest pleasure that all the passengers go home _________(平安).  4. _______ __

5．A great number of college students are active in serving as _________(志愿者) for the 2008 Olympic Games in Beijing.                                        5. _______ __

6．More and more classrooms in cities are _______ __(配备) with computers.   6. _______ __

7．Shortly after the big fire broke out, two _______ __(打) firefighters arrived to fight it.

                                                                                                                    7. _______ __

8．Both English and Chinese are their _______ __(官方) languages in this area.   8. _______ __

9．The couple have _______ __(定居) down in the city for twenty years.          9. _______ __

10．_______ __(十二月) is the twelfth month of a year.                                10. _______ __