I was now five, and still I showed no much interest in things except with my toes（腳趾）. I could not look after myself,   35  my father took care of me. I used to lie on my back all the time in the kitchen. I was   36 , imprisoned（監(jiān)禁） in a world of my own, unable to communicate with others.
Then, suddenly, it happened on the afternoon of a cold December day. All the family were gathered round the big kitchen fire. Mona and Paddy were drawing funny animals, using a bright piece of yellow chalk. It was the chalk that   37  me so much. I had never seen anything like it before.
Suddenly, I wanted to do what my sister was doing. Then without thinking or knowing exactly what I was doing, I   38  out and took the chalk out of my sister’s hand, with my left foot. It is a puzzle（迷惑）to many people as well as to   39 . I held the chalk tightly between my toes and made a wild scribble（亂涂）with it on the board. Next moment I stopped, not knowing what to do with the chalk next, hardly knowing how it   40  there. Then I looked up and realized that everyone was looking at me   41 . My mother came in. Her eyes looked from my face down to my   42 , then she took another piece of chalk from Mona, and drew the single letter “A” on the floor in front of me. “Copy that, Christy.” She said. I tried to do the same action, but I   43 . “Try again, Chris.” she whispered in my ear. I tried another two more times. I drew one side of the letter, then the other. It looked ugly, but I   44  to make it finally. I had done it! True! I couldn’t speak with my mouth, but now I would speak through something more   45  than spoken words. That one letter was my   46  to a new world, my key to mental freedom.

I heard a story about a famous scientist who had made several very important achievements.
What made him   41  from others?
He said it all came from   42  that happened when he was two years old. He tried to  43 
a bottle of milk away from the fridge, but the slippery(光滑的) bottle fell, spilling its milk all over the   44  floor.
When his mother came in,  45  shouting at him, she said, “Robert, what a great mess(一團(tuán)糟) you have made! I have never seen such a big puddle(水坑) of milk. Would you like to get down and play in the milk for a few minutes   46  we clean it up?”
Indeed, he did. After a few minutes, his mother said, “Robert, when you make a mess like this, you have to clean it up at last. So,   47  would you like to do that? We would use a towel or a mop. Which do you prefer?” He chose the towel and together they cleaned up the milk.
His mother then said, “We had a failed   48  in how to carry a big milk bottle with two small hands in the kitchen. Let’s go out and fill the bottle with water and see if you can   49  a way to carry it without dropping it.” The little boy learned that if he held the bottle at the top near the lip(杯口) with both hands, he could carry it without dropping it.
This scientist then said that it was at that moment that he knew he didn’t need to be afraid to
  50 .So, what have you learnt from the story?

Tony          TV when his mother came in.

When Jim’s mother came in, he _______ his homework.

A．is doing       B．has done     C．was doing