短文改错（共10小题；每小题1分，满分10分）
文中共有10处错误，每句中最多有两处。错误涉及单词的增加、删除或修改。
增加：在缺词处加一个漏词符号∧，并在此符号下面写出该加的词。
删除：把多余的词用斜线＼划掉。
修改：在错词下面划一横线，并在该词下面写出修改后的词。
注意：1、每处错误及其修改均仅限一词；
2、只允许修改10处，多者从第11处不计分。
I want to share with you a true story, happened a couple of days ago. One of my classmates bought a bag of snacks from a food store. A few roommates were then invited to enjoy snacks. Unluckily, all of whom got poisoned and had stomachaches with our faces pale. They were quickly sent to a nearby hospital. Doctors examined them but gave them some medicine. They were out of danger soon before taking the medicine. This accident should make us to realize the serious of the food safety problem. I strong suggest that the whole society pays more attention to food safety.