1    , a fire breaks out because of carelessness.     2    , remember to keep calm.     3     can you jump from the top of a high building, which is dangerous. You may call 119 or 110     4     an emergency and try to take some effective measures before the arrival of rescue workers     5     you get burnt.

In our community, there is a large activity room. For the past few years, our community     1     (举行了10多场会议) there. Since 2018, five computers     2     (已被安装) there for the residents. Today, the residents’ lives     3     (被大大地改变了) by these computers, because some residents     4     (被教) to use the Internet. Although they     5     (没有买) any goods online, their confidence     6     (被激起) by these things. Who can guess what their future life will be like?