用单词的正确形式填空。（每题1分，共10分）

1.It was quite terrible. It took me some time to c______ myself  down.

2.I'm terribly sorry. I didn't do it on p__________.

3. Though I haven’t met him for many years, I could r__________ him immediately when I saw him in the crowd.

4.I am d__________ to change my job. No one else can change  my mind.

5.Whether you will succeed or not in doing the work depends on your  a________ to it.

6.Water can be turned into ________(蒸汽) when heated.

7.Because of the global warming, there are more and more natural _______.（灾难）

8.He thought I had known the fact. But _______,(事实上 ) I knew nothing about it.

9.He is a stubborn person. No one can _______him.(说服，劝说)

10.The workers made great efforts to ________（营救，援救） the people who were trapped underground.