In those days, books were produced{#blank#}1{#/blank#} {#blank#}2{#/blank#}.

— 不，不是。蓝色的是他的。

— {#blank#}1{#/blank#} {#blank#}2{#/blank#} his green pen?

— No, {#blank#}3{#/blank#} {#blank#}4{#/blank#}. The blue one is {#blank#}5{#/blank#}.

My grandmother {#blank#}1{#/blank#} {#blank#}2{#/blank#} to bed early. 

People often {#blank#}1{#/blank#} eyes {#blank#}2{#/blank#} the window of the mind.

Zhang Guimei always tries his best to {#blank#}1{#/blank#} {#blank#}2{#/blank#} the best in her students. 

What will they do {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} of school?