1. 看图阅读短文，判断下列句子

I'm ten years old. I'm Sandy. Mary is my good friend. She is thin. She likes singing very much. We often(经常) play together(一起). After class, we usually (通常) clean the classroom. Mary cleans the blackboard and I clean the desks and chairs.

1. （1） I'm ten.
3. （2） Mary is my friend.
5. （3） She is tall and thin.
7. （4） We usually clean the classroom.
9. （5） Mary cleans the chairs.