1. 选词填空

in memory of;  first aid;  in tears;  in disguise;  pass away; trip over; a great deal;  in a whisper;  at midnight;  do great harm to

1. （1） I received a message from my parents that my beloved grandpa had .
3. （2） The girl ran away , scolded by his father.
5. （3） Some students are still doing their homework  .
7. （4） The thief was caught stealing by a policeman .
9. （5） The old man  a stone lying on the street.
11. （6） The knowledge of  is a necessity, which can save someone's life.
13. （7） On the other hand, we can learn  from other students we meet in activities.
15. （8） A parade will be held in our city  the great day.
17. （9） It is recognised that smoking  our health.
19. （10） The two students were talking to each  when I came into the room.