1. 选词填空

on    in    of    under    at

1. （1） Is Jack the school library?
3. （2） —Jenny, I can't find my school ID card. It's not on my book.

   —Oh! It's your desk.

5. （3） Look! This is a picture my sister.
7. （4） You can call Mary 285-0981.
9. （5） The ring Alice's finger (手指) is nice.