题目内容：

Listen to the passage and complete the sentences（听短文, 完成下列句子, 每空格限填一词）

1.We can find some signs in the ___________ room.

2.The first sign shows that we can't have food or___________ here.

3.The second sign on the wall tells us we shouldn't___________ ___________

4.The third sign on the desk tells us where we can___________ ___________

5.The fourth sign means none of us can take out the___________ ___________ here.