1. (2020四下·会宁期末) 阅读短文，判断正误

This is my classroom. It's very clean and beautiful. 

In front of the blackboard, it's teacher's desk. There are some books and a flower on the desk. Beside the blackboard, there is a bookshelf. We have many books on the bookshelf. There are fifty students in our classroom. So we are fifty desks. Our classroom is very big.

1. （1） Our classroom is beautiful and clean. 
3. （2） The teacher's desk is beside the blackboard. 
5. （3） The bookshelf is beside the blackboard. 
7. （4） There is a flower on the bookshelf.
9. （5） There are fifty students in the classroom.