完成句子。
1. 当前我们要更加重视校园安全问题。
We must payattention to the problem of thein 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 shouldin 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 youyour study ,you will do better in it.
4. 广告是20世纪高度发展的行业。
Advertising is a highlyindustry in thecentury.
5.“5.12”地震已经发生两年了。
Two yearspassed since the earthquakeon May 12,2008.