1. 将下列句子正确规范地抄写在四线三格内。

1. （1） What are you doing?

   

3. （2） I'm reading a book.

   

5. （3） He is reading a book in the study.

   

7. （4） What's the woman doing?

   

9. （5） Look at the ducks. They're swimming in the river.