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 mybeloved grandpa had       .
3. （2） On the other hand, we can learn        from other students we meet in activities.
5. （3） A parade will be held in our city        the great day.
7. （4） It is recognised that smoking        our health.
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） The girl ran away       , scolded by her father.
15. （8） Some students are still doing their homework      .
17. （9） The thief was caught stealing by a policeman      .
19. （10） The two students were talking to each other       when I came into the room.