短文改错（共10小题；每小题1.5分，共15分） 下面短文中有10处语言错误。请在有错误的地方增加

第二行as 后面加上it,are改为is.known改为kno w,at school 后的and改为or trouble前的the去掉calmly改为calm surffering改为sufferings

My dear classmates,
As( it ) is (known--know) to all, safety (are--is) very important in our daily life. Recently
our school has carried out a program aims at making our campus a safe
place to stay on. I think it is indeed a good practice, which will make us
known safety should always come first in our daily life, whether
we stay at school and outside it. When doing sports, we should care many
about the safety and avoid hurt. Besides, when we get into (the去掉) trouble with
our classmates, we should keep calmly and avoid any form of fighting.
Fighting may only bring (suffering--suffering) and pain to you. I think we should work
together to make our school safe.
Thanks!