读一读，选择合适的单词填空，每线一词。

A．playground

B．library

C．classroom

D．canteen

E．garden

1.It is big. There are many chairs and tables in it. We come here at noon and have lunch in it. It is the________.   
2.It is clean and tidy. There are many desks and chairs in it. There is a blackboard. There is a cupboard and a bookshelf too. The students have lessons there. It is a________.   
3.It is in front of the playground. There are many flowers and plants in it. It is beautiful.It is the school________.   
4.Look! It is a very big room. There are a lot of books in it. The students can read books in it. It is the________.   
5.It is big. We can see some slides, swings and seesaws there. The children can play foot-ball there, too. It's a________.