1 . She sang very well.I've never heard a _____ (beautiful) voice. （所给单词适当形式填空）

2 . A TV can be a real ______(bless) for old people. （所给单词适当形式填空）

3 . Parents worry about the effect of computer games on their adolescents’ __________ (behave). (所给词的适当形式填空）

4 . I think all of us should mind our bad _______(behave) in public places. (所给词的适当形式填空)

5 . Han Jin misses her friends from junior high school, _______ she believes that she will make new friends here, and there is a lot ______ (explore) at senior high. （用适当的词填空）（所给单词适当形式填空）

6 . The day before yesterday the police including one officer __ (be) searching for the murderer in that mountain. （所给单词适当形式填空）

7 . We can't afford to fall _____ our competitors. （用适当的单词填空）

8 . For ten years Nyad devoted herself to _______(become) one of the world’s best long-distance swimmers. (所给词的适当形式填空）

9 . The boy was crying with the toy_____________(break). (所给词的适当形式填空）

10 . He took a deep ____________(breathe) and slowly calmed down. (所给词的适当形式填空）