完形填空
A farmer had some little dogs to sell．As he was putting up an advertisement on the fence of his yard, a 1 happened to pass by．
“I want to 2 one of your dogs, sir．”
“Well,”said the farmer,“these dogs come from fine parents and cost a lot of 3 ．”
The boy 4 his head for a moment．Then he reached deep into his 5 and pulled out some change．“I’ve got thirty-nine cents(美分)．Is that 6 to take a look? ”
“ 7 ,”said the farmer．And with that he let out a whistle(口哨),“Here, Dolly!”
Dolly ran out of the doghouse 8 by four little dogs．The boy’s eyes danced with joy．
As the dogs made their way to the fence, the little boy noticed something else moving inside the 9 ．Slowly another little dog 10 ; this one much smaller．It was doing its best to 11 …
“I want that one,”the little boy said．
The farmer said,“Son, don’t want that dog．He will 12 be able to run and play with you like the other dogs would．”
The boy rolled up(卷起)one leg of his pants and showed a steel(鋼) 13 ．Looking back up at the farmer, he said,“You see, sir ,I don’t 14 too well myself ,and he will need someone who 5 ．”
