阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。

    On July 12th, 2012, an airplane took off from the capital airport of Belgium. After about an hour's flight, something ____ ( believe ) happened on the plane. The airhostess was about to serve lunch ____ a small mouse stole out from the bag of a young man, ____ made the young woman nearby fall in terror with loud screaming. Then more and more ____( mouse ) came out of the bag. ____ ( catch ) by surprise, the other passengers all shouted in panic. The steward（机长）managed to get in touch with the control center on the ground. With the order from the ground, the plane ____ ( succeed ) landed at the nearest airport. As soon as the plane was on the ground, all the passengers got off. Then seven specialists got on ____ ( kill ) these small creatures. Many means had been tried, but ____ of them were good enough.

    At last they tried to fill in the plane ____ carbon-dioxide, which poisoned all of the small creatures. It ____ ( report ) that the young man wanted to carry them to another city and sell them as pets but no one expected that these small creatures succeeded in escaping from the bag .