1 . Information must be stored so that it is __________ (安全的) from accidental deletion. (根据汉语提示单词拼写)

2 . If you hold the line, I’ll see if she is __________ (有空的). (根据汉语提示单词拼写)

3 . I'll take the ________   (灰色的)jacket.（根据汉语提示单词拼写）

4 . Tai Chi is an ________ (古代的) form of self-defence. （根据汉语提示单词拼写）

5 . I have a _________ (极好的) social life. （根据汉语提示单词拼写）

6 . We should be compassionate, understanding, forgiving and________(mercy). (用所给词的适当形式填空)

7 . He had a sudden________(sink) feeling in the pit of his stomach. (用所给词的适当形式填空)

8 . This is a(n)________ (formal) meeting, so you don’t have to dress up, just wear casually.(用所给词的适当形式填空)

9 . As you know, coral is very________(敏感) to water temperature. (根据汉语提示拼写单词)

10 . All men are born________(平等) regardless of race or color. (根据汉语提示拼写单词)