完形填空
Marty Dunn first saw Alexandra soon after she arrived in the United States and was put in an orphans' home．She was four years old but 1 no more than three．She was only half the usual weight 2 her age．Her upper jaw(上颚)developed 3 , but the lower one froze her mouth shut．
Three months later, Alex was given an 4 on her jaw in a big 5 by Marty Dunn himself．The operation was quite a success．After nine 6 Alex had a functioning(可活动的)jaw．The next day the little girl was able to open her 7 ．It was really a wonder!For the first time ever, Alex 8 ．It lit up the room．
She had never 9 a word before．Now she began to learn to speak．She 10 knew Spanish．Before long, 11 words came out freely．
One day in late November 1986, more than two years 12 Alex had arrived at the 13 , the family went to a nearby 14 ．After their meal, Mrs Dunn turned to the little girl．
“Alex,”she said,“you know we all 15 you．”We'd like you to become our 16 and to be called Alexandra Dunn．Would you like that?
Alex smiled happily．“Oh, yes, I want that!”Then she 17 Alexandra Dunn lawfully．
The day that Alex had been 18 for several years finally arrived in June the year before last．For the first time in her young life, Alex had a full set of 19 ．She looked at her parents and said,“I'm the 20 girl in the world!”
