1. 根据短文内容，判断句子正误。

Hello, friends! This is my classroom. It is very big. The walls are white. You can see a teacher's desk, a computer, four pictures, five windows and six lights. The computer is black. It's on the teacher's desk. The pictures are on the wall. The windows are yellow. The lights are green. You can see many desks and chairs. They are blue.

1. （1） The classroom is small.
3. （2） Six pictures are on the wall.
5. （3） The windows are yellow.
7. （4） The computer is on the teacher's desk.
9. （5） The desks and chairs are blue.