1. (2021八上·义乌期中) 用方框中所给单词的适当形式填空，每个单词限用一次。

careful   twenty   although   dangerous    relax

1. （1） Listening to some funny stories is very  .
3. （2） The young man drives   than he did three months ago.
5. （3） The South China tigers are in  , so we must protect them.
7. （4） Tony always gives some money to the poor,    he is not rich.
9. （5） Lily lives in a tall building with 30 floors, and she lives on the   floor.