完成句子。

1. 当前我们要更加重视校园安全问题。

    We must pay             attention to the problem of the             in the school at present.

2. 所有的学生都应该坚信自己能够上理想的高中。

    All the students should                          in themselves that they can go to the ideal high schools .

3. 如果你全身心地学习的话，你将做得更好。

   If you                            your study ,you will do better in it.

4. 广告是20世纪高度发展的行业。

    Advertising is a highly             industry in the             century.

5.“5.12”地震已经发生两年了。

    Two years             passed since the earthquake             on May 12,2008.