帮我完成一下下面这篇完型填空吧!

帮我完成一下下面这篇完型填空吧!
One day a mouse went out to find something to eat.He ran carelessly through some tall grass.He ran into a fierce lion.The lion__1__the mouse.He held him tightly and would not let him go.
"Please let me go,Mr Lion,"said the mouse."__2__I will help you."
The lion __3__."How could a little mouse help a big lion?"
1.A.met B.stopped C.caught D.said to
2.A.A day B.The next day C.The other day D.One day
3.A.laughed B.cried C.walked away D.jumped