1. (2020七上·嵊州期中) 用方框中所给单词的适当形式填空，每词仅用一次（每空一词)。

find,   that,    key,    she,    grandparent

1. （1） What are teachers doing?
3. （2） Jim's are here — on the teacher's desk.
5. （3） — Where is the pen?

   — I think it's in your room.

7. （4） I lost my ring. I must it.
9. （5） My quilt is green. What about ?