完形填空。 One day a boy was walking along the street.Suddenly he 1 and looked up into the sky. A young man passed by him. When he saw the boy,he felt curious (好奇的) 2 looked up, too. Just then a girl came 3 and saw them. 'Is there 4 in the sky?' She thought and looked up,too. In a minute,there were quite some people 5 great interest in the clear blue sky. Suddenly the boy asked, 'Hey, 6 are all you looking up at?' 'That's what we 7 ask you,'said the young man.'You want to 8 me?But I wasn't looking at 9 ,'said the boy. 'I 10 my head upward because my nose bled(出血)' (     )1. A. went on (     )2. A. or (     )3. A. out (     )4. A. anything interesting (     )5. A. giving (     )6. A. why (     )7. A. is going (     )8. A. catch (     )9.  A. something (     )10. A. put  up B. stopped B. so B. in B. interesting  something B. seeing B. where B. are going to B. ask B. anything B. get on C. walked C. but C. up C. anything interest C. showing C. how C. shall go C. tell C. nothing C. get up D. sat D. and D. down D. interesting anything D. looking D. what D. will going to D. say D. / D. take down