题目内容：

At one of the schools in London, the students can go into town in the afternoon. But they must to the school before six. One afternoon, Bob went to see a film. When he came back to the school, the school gate had already been closed. He went around the building to               door. That one was closed, too. Then he saw an open window on the                             floor. It was the                             office, Bob looked                             the room, but no one was in. He quickly                             into the room. Just then he heard a voice. Bob looked round and hid himself               a chair. Then the head teacher came in and sat down on the chair. He read a book for an hour. At last the head teacher stood up and went towards the door. “Thank goodness, he didn't                             me.” Bob thought.                             he left the room, the head teacher said to the chair, “Would you please     the lights when you leave?”

1.A．come    B．goC．return

2.A．the otherB．anotherC．small

3.A．firstB．secondC．third

4.A. teacher's  B. head teacher’s  C. students'

5.A．at    B．out ofC．into

6.A．climbed    B．wentC．ran

7.A．behind    B．in front of   C．beside

8.A．see    B．hearC．find

9.A．As soon as    B．AfterC．Before

10.A．turn off B．turn onC．turn down