根据图画和短文的内容，在短文的空白处填上一个适当的词，使短文意思完整。

It was a reading room. A boy and a girl were ____ at a desk. The girl was ____ when the boy suddenly laughed(大声笑), because he was reading a book of funny ____. The girl _____ the boy. And she asked him to ______ at the sign（标识） with the words “Be quiet”. The boy felt ____ and stopped ____ at once. But he still ______ to read these funny jokes. Then he thought of an _____ . He took the book ______ and continued(继续) reading it. He laughed as loudly as he could.