根据所给汉语提示用适当单词的正确形式完成句子。（每空只写一个单词）

1．A great number of ___________ （志愿者） contributed to making the 29^th Olympic Games a success.

2．The gold medalists were _____________ （赞扬） as national heroes.

3．She ate slowly, without _____________ （食欲）.

4．After a short period, the newcomers have become _____________ （熟悉） with other students.

5．Our school has a library _____________ （装备） with high-tech devices.

6．In the Ming Dynasty, the government had a strong _____________ （海军）.

7．This new kind of rice has been _____________ （推广） worldwide.

8．It is still impossible to prove the _____________ （存在） of aliens.

9．Of the two choices, I prefer the _____________ （后者）.

10．I’m _____________ （真诚地） thankful for what you did for my family.