提示: ⒈do sports
⒉go upstairs or downstairs
⒊friends
⒋healthy food
要求:⒈语句通顺,表达准确,内容连贯;
⒉短文要包含以上要点,可以适当发挥;
⒊词数80个左右,开头已给出,不计入总词数。
Safety has become the focus to us all. How to keep safe at school is especially important for us students.