完形填空。 One day little Johnny went to visit his grandparents on their farm. He was given a slingshot (弹弓) to play with. He practiced in the woods, but he could 1 hit the target (靶子). 2 he got discouraged (气馁), he went back for lunch. As he was walking back, he saw Grandma's pet duck. 3 thinking, he took out the 4 , shot the duck in the head and 5 it. He knew Grandma loved that duck. She would be very 6 if she knew the truth, he thought. Then he hid the dead duck in the wood pile (堆), only to see his sister Sally 7 . She had seen it all, but she said 8 . After lunch Grandma said, 'Sally, let's wash the dishes.' But Sally said, 'Grandma, Johnny told me he wanted to help in the 9 today, didn't you, Johnny?' And then she whispered to him, 'Remember the duck?' So Johnny did the dishes. Later Grandpa asked 10 the children wanted to go fishing and Grandma said, 'I'm sorry, but I need Sally to help me make supper.' But Sally 11 and said, 'Well, Johnny told me he wanted to help you.' And then she whispered again, 'Remember the duck?' So Sally went fishing and Johnny had to 12 at home. After several days of Johnny doing 13 his work and Sally's, he finally 14 stand (忍受) it any longer. He came to Grandma and said what he had done. Grandma said, 'Johnny, I know. You see, I was standing at the window and I saw the whole thing. But because I love you, I 15 you. I was just wondering how long you would let Sally make a slave () of you.' (     )1. A. always (     )2. A. Before (     )3. A. Without (     )4. A. knife (     )5. A. hurt (     )6. A. happy (     )7. A. watching (     )8. A. something (     )9. A. balcony (     )10. A. when (     )11. A. laughed (     )12. A. stay (     )13. A. none (     )14. A. can (     )15. A. forgive B. never B. After B. With B. gun B. hunted B. excited B. hearing B. nothing B. bedroom B. that B. cried B. play B. both B. can't B. know C. usually C. Until C. For C. stone C. killed C. lonely C. listening C. everything C. study C. whether C. smiled C. fish C. all C. couldn't C. remind D. ever D. While D. Through D. slingshot D. saved D. sad D. reading D. anything D. kitchen D. why D. shouted D. wash D. neither D. could D. change