Read and fill.（讀一讀，選擇合適的單詞填空。）
?This is my new school.It's big and nice.This is the（1）

teachers'

teachers'

（teachers/teachers'） office.And that is my classroom.It's on the（2）

second

second

（two/second） floor.There（3）

are

are

（is/are） forty-five students in my class.It's 4 o'clock.It's time（4）

for

for

（to/for）music class.We go to the（5）

music

music

（music/art）room.We can sing and dance in it.Do you have a music room？