On a hot summer day in South Florida, a little boy decided to go for a swim in the old swimming hole behind his house. In a hurry to dive into the cool water, he ran out of the back door, leaving behind shoes and shirt as he went.
He flew into the water, not realizing that as he swam toward the middle of the lake, a crocodile was swimming toward him. His mother in the house was looking out of the window and saw the two. In great fear, she ran toward the water, shouting to her son as loudly as she could. Hearing her voice, the little boy became alarmed and made a U-turn to swim to his mother. It was too late. Just as he reached her, the crocodile reached him. From the shore, the mother caught her little boy by the arms just as the crocodile snatched his legs. That began an incredible(难以置信的) tug-of-war between the two. The crocodile was much stronger that the mother, but the mother was much too eager（急切的） to let go. A farmer happened to drive by, heard their screams, raced from his truck, took aim and shot the crocodile.
After several weeks in hospital, the little boy survived（幸存）. His legs were very scarred by the attack(袭击) of the animal. And, on his arms, were deep scratches（抓痕）where his mother's fingernails dug into his flesh in her effort to hang on to the son she loved.
A newspaper reporter, who interviewed the boy, asked if he would show him his scars (伤疤). The boy lifted his legs. And then, with obvious pride, he said to the reporter," But look at my arms. I have great scars on my arms, too. I have them because my Mom wouldn't let go."
Never judge（判断）another person's scars, because you don't know how they were made.
What is probably the best title for the passage?

A．Scars of love

B．Women hold up half sky

C．A terrible experience

D．Don't judge by appearances(外貌)

Hearing Mother's shouts, the boy _______.

A．remained in the middle in great fear

B．didn't stop swimming forwards

C．swam back towards the bank

D．was ready to fight the crocodile

Which of the following statements is true according to the text?

A．A crocodile attacked him when the boy and his mother were bathing.

B．The crocodile snatched the arms of the boy when it reached him.

C．It was the farmer who shot the crocodile.

D．There is always an interesting story behind every scar.

By saying "But look at my arms. I have great scars on my arms, too." in Paragraph 4, the boy really wants to show ______.

A．how deep the scars made by the crocodile were

B．What a brave boy he was

C．how many scars and scratches he had

D．how great and beloved his mother was