听音，排序。
{#blank#}1{#/blank#}We should get up early every day.
{#blank#}2{#/blank#}We shouldn't eat too much meat.
{#blank#}3{#/blank#}You shouldn't play computer games too often.
{#blank#}4{#/blank#}We should help our parents.
{#blank#}5{#/blank#}You should study hard in class.
