听录音，将下列句子用数字排序。{#blank#}1{#/blank#} Shall we have a picnic this Saturday?
{#blank#}2{#/blank#} Don't go with us.
{#blank#}3{#/blank#} There are one hundred thirty-seven teachers in our school.
{#blank#}4{#/blank#} Let's help children in need.
{#blank#}5{#/blank#} We usually go to see my grandparents on Sundays.
