The story goes that two friends were walking through the desert. During some point of the journey they had an argument, and one friend slapped the other one in the face. The one who got slapped was hurt, but without saying anything, wrote in the sand: "Today my best friend slapped me in the face."  They kept on walking until they found an oasis（绿洲）, where they decided to take a bath. The one who had been slapped got stuck in the mire and started drowning, but the friend saved him.  After he recovered from the near drowning, he wrote on a stone: "Today my best friend saved my life."  The friend who had slapped and saved his best friend asked him, "After I hurt you, you wrote in the sand and now you write on a stone. Why?"
The other friend replied: "When someone hurts us we should write it down in the sand where winds of forgiveness can erase it away. But when someone does something good for us, we must engrave it in the stone where no wind can ever erase it."
You have to learn to write your hurts in the sand and to carve your benefits in the stone.
64．One friend slapped the other because ____.
A．he was angry that his friend took him to the desert by mistake.
B．He was angry that his friend did not agree with him about something.
C．He was angry that his friend kept wasting time writing and carving.
D．He had to save his friend from drowning, and this almost took his own life.
65．The underlined sentence means we should _____.
A．not let others know we are angry with them by letting wind erase what we write down.
B．gradually forgive others for bad things they have done to us as time goes by.
C．make sure what we write in the desert does not remain long .
D．not try to find stones to record things on in a desert.
66．What is the right understanding of the last sentence of the passage?
A．We should write and carve to record different kinds of feelings.
B．We should record different kinds of things in different ways.
C．We should remember only good things others have done to us and let go bad things.
D．We should remember things that others do to us, including both good things and bad things.
67．Which of the following can be the proper title of the passage?
A．True Friendship                     B．Sand and Stone 
C．Hurts and Benefits                  D．Forgiveness and Gratitude