1. (2020五下·越城期末) 选词填空，补全句子。

yours       hers      ours      mine     his

1. （1） This is your eraser, where is  ?
3. （2） Their classroom is clean,  is clean, too.
5. （3） — Is this Sarah's new bike?

   —No,  is yellow.

7. （4） My pencil-box is too small. What about ?
9. （5） It's Mike's book. It's .