阅读短文，回答下列问题。
Long long ago there was a thief. Do you
know what he did one day？When he wanted to steal(偷)the bell on his
neighbour's door, he walked up to the door, took hold of(抓住)the bell and pulled hard. The bell made a very loud noise. The
thief was afraid and went home.
Then he sat down to think. "I must do
something about the noise," he said. He thought and thought. At last he
had an idea, "Ah, I'll put some cotton(棉花)in my ears. Then I won't
be able to hear the noise." The next day he went to the door of his
neighbour, and took hold of the bell. This time he pulled even harder. The bell
rang loudly, but the thief did not hear anything. With another hard pull he got
the bell off the door. Just then the neighbour came out.
"Steal my bell? I'll teach you a
lesson," the angry man shouted. And he hit the thief on the nose.
The thief did not know how the neighbour
found out he was stealing the bell." Why did he come out just then?" he
wondered.
