阅读下面的短文，用括号内所给单词的适当形式填空，必要时可加助动词。
Beijing (CNN) reported that on the December 31st 2014, there were so many people on the beautiful beaches of Shanghai. When the people enjoyed ________(they), there were so many people that a terrible tragedy(惨剧) took place _______(sudden). Thirty-six people lost their lives in this accident. The victims(遇难者) were young, with an average age of just 22. The _____(old)was 37, the youngest was only 12. Witnesses have described what they saw on the beaches. There are many different ______(voice)about the reason of this accident. The real reason of it is being researched. We all believe that we ________(get)the truth one day. President Xi Jinping ________(call) for a full and immediate investigation(调查) into the cause of the tragedy already. Xi called for all-out efforts _______(help)the injured. President Xi said governments across the country should take measures(措施) in order to better protect public________(safe)during major public holidays and celebrations.
Comments from Sina Weibo：
BH8AHU：From ________(person)experience, let me share what to do when encountering(遭遇) similar situations：
1. Avoid ______(go) against the tide(潮), as one person or a few simply cannot go against the tide of people. If you go against the tide, you_________(pull)down, so you should go with the flow, gradually move towards the outside, and once you’re outside and against a building’s wall it becomes much safer；
2. You absolutely must watch your feet, as sewer grating(下水道栅栏), gutters, bags, and garbage can all cause you to fall and it is very difficult to get back up in a tide of people.
Fu Yuelin： Those young people who ______(shout)for people to move back, I truly thank them. If it weren’t for so many people shouting together, who knows how many more people would’ve perished(丧生).