阅读下面短文，用括号内所给动词的适当形式填空 (必要时可加情态动词或助动词)。
One afternoon, when lessons were over, Peter and Paul did not go home. They stayed in school ____(help) their teacher to start a new library in the school. They carried books for him. They worked for one hour and then their teacher said, "Thank you, boys. We ____(finish )the work tomorrow. Now you must go home."
When the boys reached home, it was seven o ' clock. It was dark outside, but there was a 1ight inside their house and the door was open. They were surprised ____( see) a man inside. They could see the man ____(look) for something.
"He _____(be )a thief, "Paul said." I ______( report) to the police and you try to talk to him. Then Peter went inside while Paul quickly______(hurry)off to telephone the police. When the man saw Peter, he looked frightened. Then he smiled and said, " You don ' t know me, but I’ m your father’s friend. He has asked me ____(find )some money for him.” In no time, two policemen arrived. As soon as the thief saw the policemen, he tried to run off. But he ______(catch) by the policemen.
Just then the boys ' parents returned."
“Is this man your friend? " one of the policemen asked Mr. Lee.
"No! " said Mr. Lee. "He is a thief . He wanted to steal my money. I am glad you_____(catch) him."