阅读下面的材料, 在空白处填入适当的内容（1个单词）或括号内单词的正确形式。    Several months after I was badly hurt in a car accident, my father sent me to a blind school.
    That morning was the new beginning. I went to this school and I heard lots of children. My new teacher took me to the class where we  (teach) to write and type in Braille(盲文). I found it quite difficult.
    "Dear, how is school going?" asked my father.
    "Daddy, I can't do this. I try and try but I just don't get it. I don't know how to learn to read Braille. It's too difficult," I cried.
    Daddy just held me in his arms and said, "Do you remember that we went to the temple  is on the top of a mountain? When we were climbing the mountain, my legs started aching, I sat down and said, 'I can't see the temple. You can't see it because it is covered  fog. Although you can't see it, I know it is there. I am sure you will climb up to it.'"
    "That day you showed me that even you can't see something, it does not mean it is not there. So although  the mountain was difficult , I knew I would get to the top."
    I was clear about what my dad wanted me （understand）.
    I went back to school and started with new energy. Very soon I could read.
    One of my  (classmate) said, "You are lucky , you know, at least , you  (see) the world. I have just heard it. I have been told there are many colors in this world  I don't understand what color means." After listening to her for the first time in two years, I felt (luck). And on that day I learned that although the light in my eyes is gone, I  see the world with the light in my heart.