环境一直是人们普遍关注的话题，也是每位学生喜爱和经常讨论关心的话题。假如你是李华，请根据下表的信息，写一篇英文短文。

注意: 1.词数: 120-150左右;

　2.可适当加入细节，以使行文连贯。

参考词汇 : schoolyard 校园

　　　　　　　　　　　　 Environment

此题要求改正所给短文中的错误。对标有题号的每一行做出判断：

无错误，在该行右边横线上画一个勾(√)；

如有错误(每行只有一个错误)，则按下列情况改正：

此行多一个词：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并也用斜线划掉。

此行缺一个词：在缺词处加一个漏字符号(∧)，在该行右边横线上写出该加的词。

此行错一个词：在错的词下划一横线(__)，在该行右边横线上写出改正后的词。

注意：原行没有错的不要改！

I went to the English Camp in London last summer

holiday. One day， my two good friends and I were on duties.　

81. ________

When we finished cleaning classroom, it was about 8:50 　82.________

in the evening. Then we prepare to go to students' dorm.　 83.________

Inside the building， it was very dark. There was only the 84.________

moon and some small stars in the sky. In that moment，　　　　 　85 ________　　　　　　　　　　　　　　　　　　　　　　　

we were all afraid. On our way to the dorm, one of my 　　86. ________　　　　　　　　　　　　　

friends saw something on the ground and picked it up, said　　 87. ________　　　　　　　　　　　

"Look, 100 pounds!" When we got to our dorm, we gave them 　　　88. ________

to the teacher. Money is important, but money is not anything　 89. ________　　　　　　　　　　

and cannot buy all what we need in the world.　　　　　　　　 90. ________

80.The banana trees has b__________ leaves, as is known to us all.

79.Life belongs to a person only once, so I hold the view that being healthy is more important than being w___________.

78.G__________, he began to understand.

77.One of the best ways for people to keep fit is to d_________ healthy eating habits.

76.Paper making began in China and from here it s__________ to North America and Europe.

75.I __________(吃惊，惊奇) at your ignorance.