完形填空。 Mr. Dawson was an old grouch (脾气坏的人), and everyone in town knew it. 1 knew not to go into his yard to pick an apple, because old Dawson would come after you with his gun. One Friday, 12-year-old Janet was walking out with her friend Amy. They 2 go by Dawson's house, but as they got close Janet saw him 3 on his front porch (门廊) and suggested they cross over the street. Like most, she was 4 of the old man. Amy said not to worry. When they got close enough, Dawson looked up with his usual frown, 5 when he saw it was Amy, he gave a(n) 6 smile. Amy smiled back and told him Janet was 7 overnight with her to listen to music and play games. Dawson told them that sounded fun, and gave them each a(n) 8 . Later, Janet asked Amy:'Everyone says he's the meanest man in town. 9 he was so nice to us?' Amy explained that when she 10 started walking past his house he wasn't very friendly, but she pretended he was wearing a(n) 11 smile and so she always smiled. It took a while, but one day he half-smiled 12 . After a while, he started smiling real smiles and then talked to her. She said he always 14 her an apple now, and is always very kind. 'An invisible smile?' questioned Janet. 'Yes,' answered Amy, 'My grandma told me that if I pretended I wasn't 14 and pretended he was smiling an invisible smile at me and I smiled back at him, 15 he would really smile.' If we remember that 16 wears an invisible smile, we too will find that most people can't 17 our sunniness after a while. We're always on the go trying to 18 so much, aren't we? It's so easy to get caught up in everyday life that we forget how easily we can bring 19 to ourselves and others. Giving a smile 20 so little efforts; let's make sure that we're not the ones that others have to pretend are wearing invisible smiles. (     )1. A. Students (     )2. A. used to (     )3. A. standing (     )4. A. surprised (     )5. A. and (     )6. A. forced (     )7. A. living (     )8. A. apple (     )9. A. What if (     )10. A. at first (     )11. A. real (     )12. A. back (     )13. A. buys (     )14. A. happy (     )15. A. sooner or later (     )16. A. someone (     )17. A. resist (     )18. A. pretend (     )19. A. cheer (     )20. A. makes B. Boys B. might B. waiting B. scared B. so B. invisible B. staying B. smile B. How come B. once B. broad B. away B. offers B. afraid B. at times B. anyone B. prevent B. work B. smile B. takes C. Strangers C. had to C. sitting C. curious C. as C. broad C. coming C. coin C. For why C. first C. invisible C. to C. shows C. satisfied C. in the meantime C. everyone C. receive C. accomplish C. kindness C. spends D. Kids D. could D. leaning D. pleased D. but D. stiff D. going D. candy D. Why not D. ever D. awkward D. again D. takes D. worried D. once in a while D. no one D. remember D. smile D. friendship D. costs