题目内容：

 

A. responsible    B. later     C. actually  

D. shocked       E. amazing

   One morning in 2006, the staff at another American high school were   1.  to find a pink car on the roof. The car even had question marks painted all over it! The staff believed that many students must have worked together to complete this.

     The American trick in 2006 was   2.  a copy of British trick in 1958. That year, at the University of Cambridge, a car appeared on the roof of a building that was five storeys high. It caused a lot of trouble for police and firefighters as they had to cut the car into pieces to get it down. They couldn’t find out who was 3. , and the trick made headlines around the world. It was only fifty years   4.  that the students in the case proved who they were and how they played the excellent trick.