题目内容：

听下面一段独白，回答以下小题。

1.What happened to Sam?

A. He was knocked down by a truck.

B. He fell to the ground when crossing the road.

C. He stopped the truck driver when crossing the road.

2.Who asked the driver to stop?

A. The little boy.    B. The boy’s mother.    C. David.

3.Why did David help that poor woman?

A. She had no money.    B. She couldn’t walk.

C. She was David’s neighbor.

4.What kind of person is David?

A. A selfish man.    B. A brave man.    C. A warm-hearted man.