On October 5th, a sad thing happened in Jidong County, Heilongjiang Province. Nine people fell ill after ________ together. On Monday, the last of the nine people died in the hospital.

The deaths were caused by bongkrek acid (米酵菌酸). It came from the ________ — suantangzi, a kind of noodles they had eaten that day. It can ________ keep alive even after the food is boiled at high temperatures. It’s ________ to eat food with bongkrek acid. The probability of death caused by it is over 50%.

The National Health Organization ________ people not to eat food that has been fermented (发酵) for a long time. Since 2010, there have been 14 cases of bongkrek acid poisoning (中毒). It included 84 people, and 37 of them lost their lives.

Some Internet users said suantangzi was a ________ food, and it had a history of many years. They wondered why no such deaths had been reported before. ________, people had little knowledge about food health and didn’t care about it in the past. Most of the time, they didn’t know ________ they got sick or died.

We should also pay attention to some other popular fermented snacks. Besides, we’d better ________ food that has been stored for too long.

This is a sad thing, but it also reminds people of the importance of food ________. In our daily life, there are many different kinds of food. Before you taste food, you should know that safety must always come first.