To change this situation, {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}, the teachers and the students should work together.

It has aroused a heated discussion among education experts {#blank#}1{#/blank#}.

We don't know what her problem is. If we {#blank#}1{#/blank#} it, we {#blank#}2{#/blank#} give her some help.

The activity to be held next week {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} improving the students' safety awareness.