We realized how much {#blank#}1{#/blank#} after watching these documentaries．

{#blank#}1{#/blank#} your notes before the exam.

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{#blank#}1{#/blank#} {#blank#}2{#/blank#} to achieve our Chinese Dream, we must study and work hard.

He is interested in {#blank#}1{#/blank#} music.

{#blank#}1{#/blank#} {#blank#}2{#/blank#} you work till midnight, you won't finish it.