Stop______down trees, _______the environment will get worse and worse.

题型：单选题题类：常考题难易度：普通

广东省深圳市深圳中学2016-2017学年七年级下学期英语期中考试试卷

A、to cut ; and B、To cut; or C、cutting ; or

举一反三

Please {#blank#}1{#/blank#} {#blank#}2{#/blank#} the information quickly.

They walked for a long time. {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} they got to the top of the mountain.

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