题目

On the night of the play, Jack was at the theatre early. He was already dressed in a policeman's clothes long   21   the end of the first scene. He certainly looked the part all right, he thought as he   22   himself in the mirror. He even   23   going out into the street to see whether he could pass as a policeman out there. Just for   24  , of course. Then he suddenly felt   25  . After all, it was his first time to have a part in a play How could he  26   all those people watching the play? He put his head in his hands and tried to   27   his lines, but no淘气有58张画片，借给同学们29张后，还有39张画片。（______）