1 . 阅读下面语段, 在空白处填入1个适当的单词或括号内单词的正确形式。

Festivals are occasions _________ allow us to relax and enjoy life, and forget about our work for a little while. And you may be surprised to find that different cultures _________（actual）have a lot in common after all.

2 . However, a plan can bear no fruit without being _____ (actual) carried out.

3 . He looked calm, but _________（事实上）he was quite frightened. (根据汉语意思单词拼写)

4 . ________（事实上）, he has an outgoing personality. （根据汉语提示单词拼写）

5 . ________（事实上）all languages change and develop when cultures meet and communicate with each other. （根据中文提示填空）