1 . It is hoped that immediate action will be taken to tackle this ____________ (紧急的) problem. （根据汉语提示单词拼写）

2 . This appointment was an attempt to ______________ (加强)her hand in policy discussions. （根据汉语提示单词拼写）

3 . The human brain needs to be without oxygen for only four minutes before _____________ (长期的) damage occurs. (根据汉语提示单词拼)

4 . I want to major in biology because I have long wondered about the o______________ of life. （根据首字母单词拼写）

5 . She is one of the most i______________ figures in local politics. （根据首字母单词拼写）

6 . I______________, she had no idea what was going on. （根据首字母单词拼写）

7 . In short, a good and h______________ environment at home is necessary for a child to grow healthy. （根据首字母单词拼写）

8 . Tokyo and New York are major f______________ centres. （根据首字母单词拼写）

9 . ______________(接触) to nature has been thought to be necessary for brain development in children. （根据汉语提示单词拼写）

10 . She was an ______________（优雅的）and accomplished woman. （根据汉语提示单词拼写）