1 . 他是唯一知道真相的人。(动词不定式作定语)
__________________________________________________________________________.

2 . Is there any _________ (true) behind the saying “You are what you eat”? （所给词的适当形式填空）

3 . We need to keep in mind that what we see on social media is often not the whole __________ (true) about a person. (所给词的适当形式填空)

5 . Franklin has taught us that scientific experiments are important in order to ______ ______ ______ (证实真相) and to contribute towards later scientific discoveries and inventions. （根据汉语提示完成句子）

6 . We hold these ________(真理) to be self-evident: that all men are created equal. （根据汉语提示单词拼写）