阅读下面短文，根据其内容完成后面各项任务。
When Charlie got up last Sunday morning, he looked out of the window, and saw that the ground was covered with snow. On the side of the house, the snow was higher than Charlie. "We must have a path through this snow, "said his father. "I would make one if I had time. But I must be at the office early this morning. Do you think you could make the path, my son?" he asked little Charlie. "I? Why? The snow is higher than me! How could I ever cut a path through that snow?" "How? You can do it little by little. I hope you will try," said the father. Then his father left for his office.
Later, Charlie set to work. He threw up first one shovelful(一铲), and then another; but it was slow work. "I don’t think I can do it, mother, "he said. "A shovelful is so little, and there is so   much snow." "Little by little, Charlie," said his mother. "That snow fell flake(雪花) by flake, but you see how much it has made." "Yes, mother, I see," said Charlie. "If I throw it away little by little, it will soon be gone." So he worked on.When his father came home for dinner, he was pleased to see the fine path. The next day was Charlie’s birthday, the father gave little Charlie a pen, with yellow letters "Little by Little" on it.
What did Charlie find when he got up last Sunday morning? (no more than 10 words)
 
Which sentence in the passage can be replaced (替换) by the following one?
I don’t think it’s possible for me to make a path through the snow.
 
Did Charlie make the path through the snow at last?
 
把文中画线处翻译成中文。
 
What’s the best title of the passage?