1 . ________(ạddict) to playing computer games, he wasted lots of time he should have spent on study. （所给词的适当形式填空）

2 . If it’s a______________ (法律的) matter you need to seek professional advice.(根据汉语提示单词拼写)

3 . Now that we have grown up, we should learn to be ___________ (负责的) for what we have done. (根据汉语提示单词拼写)

4 . To look after my pets properly takes a lot of time but I find it ______ (值得做的). (根据汉语提示单词拼写)

5 . China is becoming more and more ________(power) in the world. (所给词的适当形式填空)

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

7 . It is because Spain took control of Peru in the 16^th century and ruled until 1821 that Spanish is the main ______(官方的，正式的) language of Peru.(根据汉语提示单词拼写)

8 . The government leads a campaign against _______ (legal) trade of wild animals. (所给词的适当形式填空)

9 . The good relation between humans and nature contributes to building a _________ (harmony) society. (所给词的适当形式填空)

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