完成句子。（每空0.5分，共5分）
总是努力迎合观众们的反应是很重要的。
It is important to always try to _______ _______ the way the audience will ______.
不幸的是，全城的人都被活埋了，整座城市也被掩埋了。
Unfortunately, all the people _______ ______ _______, and so was the city.
．当看到那个男孩溺水时，他毫不迟疑地跳入河中。
When he saw the little boy drowning in the river, he jumped into the water _______ ________.
要是我还不理解这个意思怎么办？
_______ ________ I still cannot understand the meaning?