1. 用方框中所给单词的适当形式填空。

education  discuss  become  lucky  lose

1. （1） Lots of people came and the hall soon crowded.
3. （2） I think news is than soap operas.
5. （3） The students are having a about the holiday plans.
7. （4） — The boy's mother died when he was only seven years old.

   — Oh, he is really a (n) boy.

9. （5） Susan is not careful. She her car keys again yesterday.