根据下列句子的汉语意思和英文提示，完成句子；每空一词。
1. 开往北京的CA4106航班已于昨晚21:30起飞.
Flight CA4106 to Beijing at 21:30 last night.
2. 2012年7月27日至8月12日将举办伦敦奥运会.
The 2012 London Olympic Games will take place July 27 August 12.
3. 那个为救学生而失去双腿的女孩被称为".
The girl her legs for saving her student's life is called"the most beautiful woman teacher".
4. 当有人伤害了我们,我们应该将其写在沙土上,让它随风而逝.
When someone hurts us, we should it in sand, and the wind can take it away.
5. 我们应该以雷锋为榜样,乐于帮助别人.
We should follow Lei Feng's example and be help others.