Read and arrange. 读句子，排序。5%
（ 7 ）OK! Let’s go.
（ ）Thank you!
（ ）Oh, It’s big and nice.
（ 1 ）Hello, Peter. Welcome to our school.
（ ）Look! This is my classroom.
（ ）Thanks. Peter. Do you see a football under the desk?
（ ）Yes, I do. Let’s go and play it!