读一读，给下列对话排序。{#blank#}1{#/blank#}It's so big. How many students are there in your class?
{#blank#}2{#/blank#}Do you have a library?
{#blank#}3{#/blank#}Welcome to our school! This is my classroom.
{#blank#}4{#/blank#}Yes, we do.
{#blank#}5{#/blank#}Forty-eight students.
