用下面方框中单词的适当形式填入短文空格内，使短文意思正确、通顺(每词限用一次)。

research    common     they      fun        before       compare sudden      social     same      find      affect      exact

Worried That People Are Laughing at You?
Imagine this situation. You pass a group of people. The people are talking to each other. You cannot hear what they are saying. But    1  they start laughing. What would you think? Would you think they were laughing at something   2   that one of them said? Or, to be honest with yourself, would you think they were laughing at you? Yes, you.
Being laughed at is a  3 fear. But a major study published(公布)in 2009 found that this fear is not the   4   around the world, It differs from culture to culture.
Some people in the study said they felt unsure of   5   in social situations and hid their feelings of insecurity (不安全). Others said they avoided (回避) social situations where they had been laughed at   6  .
Shy people often avoid situations that would make them get into close contact (接触) with other people. They worry that something they say or do will make other people laugh at them, It can be truly sad for those who live with the fear of laughter. It can   7   how they lead their lives.
In the study, a team from the University of Zurich led more than ninety   8  from around the world. They wanted to understand the difference between normal shyness and true fear of being laughed at. Another purpose of the study was   9  the levels of fear of being laughed at in different cultures. The scientists surveyed more than twenty-two thousand people in forty-two different languages. The   10  would appear in Scientific Humor.