根据课文内容填空.
Marty has a      disease. Sometimes he is    and drops things or bumps into furniture. Gradually . he has learned to      to his      . He. doesn't look different from others. So sometimes he is      at when he gets out of breath after running. Every time after an      from school, he feels      because he is behind the others. When some persons can't see the real person inside his body, he doesn't get      ，he just      them. He has a good life. He can do      in writing and computer programming. His      is to work for a      that develops computer software when he grows up. His disability has made him more     . He says ,“ Just having a disability doesn't mean your life is not      . ” He suggests the people should give      to the disabled.
__________ 
__________ 
__________ 
__________
__________ 
__________ 
__________ 
__________
__________ 
__________ 
__________ 
__________
__________ 
__________ 
__________