题目内容：

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 ____1.____(they), there were so many people that a terrible tragedy(惨剧) took place ___2.____(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 ___3.__(old) was 37, the youngest was only 12. Witnesses have described what they saw on the beaches. There are many different __4.____(voice) about the reason of this accident. The real reason of it is being researched. We all believe that we ____5.____(get) the truth one day. President Xi Jinping ___6._____(call) for a full and immediate investigation(调查) into the cause of the tragedy already. Xi called for all-out efforts _____7.__(help) the injured. President Xi said governments across the country should take measures(措施) in order to better protect public_____8.___(safe) during major public holidays and celebrations.

Comments from Sina Weibo：

BH8AHU：From ____9.____(person) experience, let me share what to do when encountering(遭遇) similar situations：

1. Avoid ___10.___(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____11._____(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 __12.____(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).