完形填空。      It was a cold, wet day on June 6, 2010, when 14-year-old Wasana arrived at school. Waiting outside his
classroom for his classmates to    1   , Wasana stared at the   2  . Then his eyes fell upon the 18-metre-high
hill that    3   at the back of the classroom.
     He    4   large amounts of rainwater flowing down the hill, and water was also bubbling (冒泡) at the base
of a rock on the hill. For a few minutes, Wasana    5   the water, wondering why it looked so    6   . Then it hit
him - the    7   was similar to the video he was shown during Disaster Management classes. Fearing a    8   
disaster, he shouted    9   at the students waiting outside their classrooms."Run, run, don"t stay here! The   10   
on the hill is going to fall on us!"
      Chaos (混乱) broke out    11   the students ran to the open area that had been appointed as an emergency
gathering point. When some teachers    12   Wasana, he showed them the water rushing down the hill, and they
started leading the students to safer ground.
     Just then headmaster Gurusinghe drove into the school. Wasana ran over to tell him what was happening.
After   13   the site (现场), Gurusinghe knew the school was in   14  . The enormous rock at the top of the hill
could come crashing down   15 . 
       16   a group of teachers and older students, Gurusinghe climbed the hill and tried to make the water flow
away from the rock. They were too    17   . Ten minutes later, they heard screams as the huge rock rushed
down the hill. There was little Gurusinghe and his group could do as they watched the earth   18   their
classrooms. Thanks to Wasana"s    19   action and careful observation,   20  was hurt in the incident.

(     )1. A. arrive         (     )2. A. book          (     )3. A. placed        (     )4. A. noticed       (     )5. A. shouted at     (     )6. A. interesting  (     )7. A. show          (     )8. A. going         (     )9. A. happily       (     )10. A. rock        (     )11. A. until      (     )12. A. questioned    (     )13. A. examining    (     )14. A. safety       (     )15. A. for the moment (     )16. A. Taking      (     )17. A. late        (     )18. A. face       (     )19. A. crazy       (     )20. A. someone

B. rest            B. sun            B. stood           B. felt            B. aimed at          B. dangerous      B. scene           B. heading          B. wildly          B. sand             B. if             B. respected      B. visiting         B. damage          B. at any minute    B. Helping          B. careless       B. rush          B. quick         B. only one

C. dine             C. rain           C. hid              C. knew             C. stood at         C. moving          C. site             C. coming           C. rudely          C. tree            C. as             C. instructed      C. choosing        C. danger          C. at one time      C. Demanding       C. nervous        C. swallow        C. united          C. anyone

D. chat           D. hill           D. faced          D. heard          D. stared at      D. familiar       D. view           D. leaving        D. angrily        D. water          D. although       D. approached     D. clearing       D. comfort         D. for once      D. Leading        D. strange        D. enter          D. direct         D. no one